4raise/sound the alarmWARN especially British EnglishBrE to warn people that something bad is happening 发出警报
Neighbours raised the alarm when they smelled smoke.
邻居闻到烟味便发出了警报。
Examples from the Corpus
raise/sound the alarm• When the First Lady looked in on him and discovered he was missing, she panicked and sounded the alarm.• The Big Three began sounding the alarm in a big way when Januarysalesfigures were reported.• Stewart dispatched a columnsounding the alarm.• Volcanologist Pierce Brosnan and small-townmayor Linda Hamilton sound the alarm.• Fred Goodyear was so shocked that it was more than eight hours before he raised the alarm.• He sounded the alarm and the train stopped at St-Pierre-des-Corps, nearTours.• They have lost no time in sounding the alarm about an impending famine, which they say threatens 1.9m people.• He was one of the earliest to sound the alarm about the fate of churches and their contents.
5alarm bells ringif alarm bells ring, you feel worried that something bad may be happening 警钟敲响,引起警觉
Alarm bells started to ring when he failed to return home.
他没有回家,大家担心起来。
Examples from the Corpus
alarm bells ring• Nor had any alarm bells rung about Thomas.• But alarm bells rang when Allison wrote back in December.• At Police Headquartersalarm bells rang in from government munition dumps, militaryvehiclecompounds, hi-techweaponfactories and sweetshops.• Her fleshcried out to be closer, and, with the last vestiges of sanity, alarm bells rang.• More precisely, one complaint from a parent actually appeared, but this was enough to set alarm bells ringing.• Between them, in their flight from the mill, they'd set all the alarm bells ringing at the local sub-station.• Maybe when they didn't phone home, the alarm bells rang.
Neighbours heard the burglar alarm and called the police.
邻居听见防盗警报器响起便报了警。
nan intruder/a security alarm
The house has a system of security alarms.
a fire/smoke alarm 防火/烟雾警报器
A fire alarm went off and the building had to be evacuated.
防火警报器响了,大楼里的人员不得不撤离。
a car alarm (=for when someone tries to steal a car) 汽车警报器
I was woken by a car alarm in the middle of the night.
半夜,我被汽车警报器惊醒。
a baby alarm (=for when a baby wakes up and cries) 婴儿警报器
Is the baby alarm switched on?
婴儿警报器开着吗?
a personal alarm (=that you carry with you in case you are attacked) 随身警报器
nIf you are nervous, invest in a personal alarm.
alarm + NOUN
an alarm button 警报器按钮
He hit the alarm button under the desk.
他按了桌子底下的警报器按钮。
an alarm system 警报系统
nan electronic burglar alarm system
verbs
set off/trigger/activate the alarm (=make it start ringing) 触动警报器
A window blew open, setting off the alarm.
一扇窗户突然吹开,触响了警报器。
set the alarm (=make it ready to operate) 打开警报器
Did you set the burglar alarm?
你打开防盗警报器了吗?
an alarm goes off (also an alarm sounds formal) 警报器发出响声
The thieves fled when an alarm went off.
警报器响了,小偷就逃跑了。
switch/turn off the alarm 关闭警报器
nI entered the shop and switched off the alarm.
Examples from the Corpus
alarm• An alarm went off in his head as it occurred to him what a sitting target he was in his Baby.• Several oil-producing countries expressedalarm at the fall in prices.• It sounds like a fire alarm and enters my ears like a keeningmosquito that I can not reach.• Some of the girlssquealed in alarm.• Some of them had noticed the sea-fret by now and had jumped up in alarm.• She closed the door behind him, put her rapealarm back on the bedsidetable, and there they were.• The banktellerpushed the alarmbutton.• Fred Goodyear was so shocked that it was more than eight hours before he raised the alarm.• The Big Three began sounding the alarm in a big way when Januarysalesfigures were reported.
alarm went off• An alarm went off in his head as it occurred to him what a sitting target he was in his Baby.• Not long after the lorrydriver left, the water became more and more acid and alarms went off.• He slept badly for two hours and rose when the bedside alarm went off at three.• The fire alarm went off that evening - Tuesday, November 24.• About an hour before the the alarm went off.• The instant I breached the threshold, the alarm went off.• I had the window down, and when the alarm went off I could hear it clearly.• They caused about £800 worth of damage but fledempty handed when the alarm went off.
alarm2 ●●○ verb [transitiveT]
WORRIEDto make someone feel worried or frightened 使不安,使恐慌
I don’t want to alarm you, but I can’t find the key.