security clearance• Another son, Ron, is a Lockheed employee with a security clearance.• Thompson still is hiring and getting security clearances for his investigativestaff and finding space for them to work.• The secrecy touches all who work there; even the cafeteriastaffers must have security clearances.• In preparation for his job at Commerce, Huang received an interimsecurity clearance while he was still working at Lippo.• Only personnel with a high-levelsecurity clearance are allowed in the building.• The challenge had come from Justice Department lawyers with top secretsecurity clearances and from civilianArmydrugcounsellors.• He has dropped homosexuality as an impediment to security clearances.• A visitor without security clearance must be signed for by the sponsor and accompanied at all times.• Excuse me Major but I don't know you or your security clearance.
snow/land/slum etc clearance• Not in urbandevelopment, not in city slum clearance, not in social welfare.• On a big estate - slum clearance - in the North.• However, slum clearance and replacement was for the poor.• But the end of slum clearance came more with a change in values: away from demolition, to conservation and rehabilitation.• It also extended them to cover land affected by new towndesignation orders, slum clearance orders and new street orders.• When it came to slum clearance, opposition came not from slumlandlords but from the residents themselves.• Most of the loss is attributed to population growth and rural poverty, leading to land clearance for agriculture.• This successsuggested that the general housing shortage was now considerably eased, and attention returned to slum clearance.
1removal of sth old/unwanted清除ADJECTIVE | CLEARANCE + NOUN | PREPOSITIONADJECTIVE➤forest, land, site, slum森林砍伐;土地清理;工地清理;貧民窟拆除CLEARANCE + NOUN➤work清理工作▸➤sale (= when goods are sold cheaply to get rid of them quickly)清倉甩賣➤rack (= in a clearance sale) (NAmE) 清倉甩賣貨架PREPOSITION➤on clearance (= reduced in price)降價出清◇These coats are on clearance.這些外套在降價出清。clearance
noun²
2official permission官方許可ADJECTIVE | VERB + CLEARANCEADJECTIVE➤official, proper官方/專門許可➤top-secret絕密級許可▸➤customs, diplomatic, entry, medical, security結關;外交放行;入境許可;醫療證明;通過忠誠審查➤take-off起飛許可VERB + CLEARANCE➤get, obtain, receive獲得許可;收到放行證明◇You'll need to get security clearance for this job.做這項工作需要先通過忠誠審查。➤have有放行證明▸➤apply for, request, seek申請許可;要求放行;尋求放行➤await等待放行▸➤give sb, grant sb給予某人放行◇The pilot was granted clearance to land.飛行員得到了着陸許可。➤refuse sb拒絕給某人放行clearance
noun³
3distance between sth and sth passing under/beside it間隙ADJECTIVE | VERB + CLEARANCE | PREPOSITIONADJECTIVE➤ground離地間隙◇We need to increase the vehicle's ground clearance.我們需要增加車輛的離地間隙。VERB + CLEARANCE➤allow (sb/sth), give sb/sth, leave(為⋯)留出淨空◇Make sure you allow enough clearance on each side.要確保每一側都留出足夠的間隙。◇Always give bikes plenty of clearance.要總是給自行車留下足夠的間隙。PREPOSITION➤clearance above⋯上方的淨空◇clearance above the light to prevent overheating為防止過熱而在燈上方留出的淨空➤clearance between⋯之間的淨空◇There wasn't enough clearance between the bus and the top of the bridge.公共汽車和橋頂之間沒有足夠的空隙。