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- anthropoid 156
- Arraign 108
- airlock 44
- allegories 74
- watch 228
- abominate 104
- distance 492
- advance 476
- civil rights 65
- suggest 341
- ecclesiastical 171
- lb 6
- pre-roll 52
- Gardening-topic gardening 64
- Conform 50
- the Diplomatic Service 47
- pronoun 320
- education 437
- muddier 4
- exploration 251
- agitated 114
- general-public 35
- giant-killing 34
- organize 469
- brier 46
- adapt 434
- wise 383
- admirer 90
- notice 420
- lever 368
- symbol 384
- crazy paving 75
- Undermine 41
- phalanx 6
- European Union 42
- temperately 48
- aseptically 6
- excepting 137
- frightening 215
- witty 151
- bff 61
- Extremely 71
- collusion 149
- hooky 9
- Adventure 183
- cite 227
- caries 66
- Use 229
- porcelain 140
- film-star 45
- bard 65
- putative 20
- themselves 55
- hookey 6
- unfavourable 262
- Fast 123
- accommodate (yourself) to something 31
- customarily 35
- chianti 64
- allude to 33
- individualize 50
- breakout 90
- emphasis 445
- pervade 31
- self-starter 78
- cash-flow 61
- Abusive 190
- Depression 270
- tick over 66
- crusted 67
- A short time ago 33
- Rumble 236
- targets 37
- take away 60
- oblige 386
- loathe 176
- Skyscraper 147
- ala 35
- bearable 83
- spontaneously 46
- boom-town 38
- Honor 140
- semi-automatic 181
- casuals 42
- gloomily 86
- compactor 59
- whispering 23
- elevenses 70
- housewives 42
- remove 860
- slug it out 39
- Drink-topic 78
- cleanlier 74
- on short notice 100
- brickwork 60
- reincarnation 53
- half-timbered 199
- holily 4
- austin 3
- Pad 27
- sentimentality 14
- apotheoses 63
- Greenwich Mean Time 51
- blood and thunder 60
- natural gas 312
- escarole 49
- Historic 77
- apparent 653
- chug 119
- demarcation 84
- Brother 54
- Within 111
- be associated with 85
- nauseating 61
- POLARIZE 42
- framing 49
- cold snap 78
- Qualify 168
- affectation 101
- petrifying 6
- gemstone 62
- peach 1242
- platform 521
- adjure 57
- aristocratic 111
- unintelligible 225
- green revolution 63
- fog 393
- god-awful 139
- construing 37
- complain 440
- shoulder 388
- chimney sweep 59
- forsook 49
- individually 128
- fillip 73
- acquisitive 87
- Sweetener 58
- Incline 122
- manpower 70
- falsifiability 29
- Confident 207
- confectioners-sugar 26
- articles 43
- DisAppear 144
- body double 55
- gassier 36
- furthest 67
- Donate 249
- grog 148
- further 354
- crawfish 60
- cross-channel 123
- outplacement 31
- diminished responsibility 55
- Fasten 182
- attaché case 457
- Category 133
- backside 76
- fire sth off 52
- photobomb 10
- verbal 156
- playboy 51
- Coordinator 154
- avian flu 97
- executive 457
- absolutistic 30
- look over your shoulder 37
- morassy 7
- carbuncle 129
- inoffensive 11
- complete 620
- doubting 49
- Subscribe 183
- edible 80
- Parasite 48
- cuff 102
- indisputable 23
- dcms 6
- tug 266
- doh 52
- entertainer 148
- acting 204
- at an end 19
- interpretation centre 38
- half-life 152
- odd 370
- apologia 138
- free fall 77
- cavortings 61
- You're 113
- tipsy 32
- the business end 60
- inspiration 198
- wagon 405
- call girl 48
- Incentive 147
- Swelling 26
- logistics 252
- sprinkler 69
- frcs 40
- catchment-area 42
- Darwin 41
- exaggerate 441
- jiggle 10
- idiosyncratic 53
- imp 106
- dress rehearsal 53
- preside 113
- manhunt 7
- Submissive 40
- Premature 31
- greasy-spoon 45
- flambe 10
- figure-of-eight 121
- included 114
- anchor 394
- recognized 71
- donor-card 65
- Touch 248
- four-letter-word 57
- fantastical 106
- basketlike 37
- fissure 87
- gmt 57
- only 169
- pigswill 8
- weasel 133
- salve 119
- liner 331
- bird-watching 40
- sale 1281
- electrified 66
- microlight 5
- combat 190
- endosperm 59
- oven 452
- delicacy 124
- mickey 6
- Thrust 119
- Satellite 226
- squiffy 29
- experiment 422
- accomplishment 287
- victorian 63
- swig 56
- devi 47
- lobster 136
- pot luck 78
- onomatopoeia 5
- Working 44
- germanic 69
- authorization 83
- fabric 412
- begrudging 49
- DUE 58
- crab-apple 32
- perfectionist 175
- judger 80
- infest 101
- psychiatrist 96
- creaturely 33
- buzz cut 38
- Technology topic 59
- bluey 39
- confidence trick 73
- deprecatory 45
- Burial 51
- micro 32
- delightful 200
- joyful 372
- gale force 37
- bassist 65
- specious 97
- pickings 9
- buzz off 55
- tough sth out 56
- double-vision 129
- instilling 7
- olive branch 79
- come down to 58
- Widow 108
- solitary 145
- Pardon 144
- practicing 105
- eighty 303
- catty 70
- figurehead 62
- Medic 137
- frontrunner 65
- Mother 117
- mismatch 39
- authoress 53
- oviparous 12
- encore 101
- fiji 53
- regulations 103
- Enduring 22
- deadly 321
- hand something to someone on a plate 34
- unnumbered 218
- Sea 81
- ferryboat 89
- screenwriter 183
- marketing 182
- Enrolment 19
- colourant 61
- annunciation 37
- attribution 93
- Purse 76
- French Canadian 58
- Southeast 86
- B.A. 40
- worthy of note 25
- lust for 68
- apparatus 391
- slump 234
- quantum mechanics 70
- forbearing 70
- Amputate 29
- foreign-office 49
- dharma 56
- rebate 79
- garage 404
- friendlies 50
- oppressed 81
- Aviator 63
- glacé 71
- Come what may 30
- buzzcut 38
- age limit 83
- footsore 75
- boom-box 39
- entwine 84
- hydra 6
- acquiree 36
- armlet 12
- microorganism 164
- MP 158
- cub reporter 78
- aonb 53
- papping 7
- stove 354
- Decide 239
- excellent 441
- ground-floor 35
- verity 79
- climax 217
- gerbil 63
- compressive 47
- goatherd 67
- emeritus 67
- participant 272
- softly 396
- flattop 37
- contradictory 305
- peace 408
- upheld 50
- instituter 12
- at hand 86
- irate 222
- Journalist 96
- Thumbs up 97
- colossal 190
- accompany 468
- pda 7
- Behind 11
- behemoth 83
- cloddish 35
- broodily 76
- light up 55
- misunderstanding 208
- colour supplement 71
- divided-highway 42
- Upscale 92
- upstanding 35
- arson 93
- queue 407
- feasting 64
- come upon 53
- landslip 154
- Witnessed 25
- back talk 39
- terrace 423
- playmate 194
- salacious 50
- Studio 152
- petrodollar 7
- icky 7
- aphaeresis 58
- underway 144
- Fair behaviour and the quality of being fair and reasonable 54
- expenditure 563
- costing 105
- duffel coat 90
- interrogatory 5
- blackcurrant 139
- stigmatize 86
- day nursery 67
- fairway 62
- mystery 449
- Inevitably 22
- recondition 101
- cooler 54
- Interested 247
- dust mite 47
- fathers-day 99
- factual 158
- pasteurization 89
- unpleasant 449
- fatty 142
- affix 118
- teleworker 96
- tenement 24
- Animation 110
- Known 88
- termination 62
- fountain-pen 60
- appreciate 437
- spring chicken 36
- condimental 73
- Promiscuous 32
- brights 64
- discolor 54
- flowingly 83
- octopoid 8
- lawn 347
- come in for 109
- creep out 98
- assisted living 52
- occur 1117
- hand sth in 34
- Afterward 111
- stern 372
- bloody-minded 70
- resentful 78
- contorted 109
- bangs 56
- bring down 43
- microsite 11
- relieve 398
- fiddliest 43
- muzzy 8
- array 263
- viable 209
- belly dance 116
- the elements of something 72
- hike sth up 30
- MC 50
- at fault 81
- cold sore 136
- rundown 49
- harvest 394
- partier 7
- deacon 71
- shearer 14
- contexts 52
- thick 396
- Brussels 95
- golden-handshake 31
- celluloid 114
- thrashing 158
- edgy 151
- eloquent 306
- childish 357
- microphone 355
- chamber music 114
- desert island 88
- aitch 75
- shoot down 37
- consolidate 328
- namely 337
- blot sth out 141
- choose 353
- in the event 35
- April Fools' Day 71
- Reek 95
- genial 123
- thereby 599
- colitis 46
- chapati 77
- buckle down 62
- partly 307
- refine 394
- trail 481
- damson 69
- pecker 148
- churn 138
- boiler-suit 37
- insignificantly 68
- e-tailer 147
- coal-tar 25
- drumbeater 40
- Explorer 226
- pontifications 18
- active service 112
- Miscellaneous written symbols 46
- fractal 71
- classmate 402
- anywhere 335
efficacy
Word family
ef·fi·ca·cy /ˈefəkəsi/ noun [uncountableU + of]
formalEFFECTIVE the ability of something to produce the right result 有效性；功效 SYN effectiveness OPP inefficacy
Examples from the Corpus
efficacy• Sufficient data on safety and efficacy of long-term use of Ritalin in children are not yet available.• Each is adorned with silken cloths and has its tusks shod with iron for the greater efficacy of killing criminals.• Struan, because of its direct descent from a traditional ritualistic practice, still retains a trace of sacramental efficacy.• Franz Kafka perfectly exemplifies the efficacy of art in counteracting emotional wounds, if not in healing them.• This effect, essentially an increase in the efficacy of transmission between pre- and postsynaptic cells, was termed potentiation.• Salmeterol could therefore reduce the efficacy of salbutamol when the two are given in combination.• Evaluate vaccine efficacy and the costs and benefits of vaccination programs for emerging infections.• It is a controversy over the issues of risk versus efficacy.
ef·fi·ca·cy noun
Chinese
Syllable
Corpus
efficacy
Usefulness and efficiency: usefulness, efficiency, effectiveness...
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