| 词汇 | clearance |
| 释义 | clearance 2 ENTRIES FOUND: clearance (noun) clearance sale (noun) clearance /ˈklirəns/ noun plural clearances clearance /ˈklirəns/ noun plural clearances Learner's definition of CLEARANCE 1 a : an official decision saying that someone has permission to do something许可；批准 [noncount] You'll have to get clearance [=approval] from management to go ahead with the project.你必须得到管理部门的批准才能启动这个项目。 The documents are only available to people with security clearance [=special permission given only to people who are approved to know or see secret things] from the government.只有得到政府许可才能查看这些文件。 [count] She has a security clearance that allows her to see the classified information.她有接触机密的官方许可，可以看这些机密信息。 b : official permission for an aircraft, pilot, etc., to do something（给飞机、飞行员等发出的）许可 [noncount] The pilot got clearance to land.飞行员获准着陆。 That flight has not received clearance for landing/takeoff.那个航班尚未获准着陆/起飞。 [count] a clearance for landing/takeoff着陆/起飞许可 2 : the amount of space between two things间隙；间距 [noncount] There was only 10 inches of clearance between the car and the side of the tunnel.这辆车和隧道的侧墙只有10英寸的间隙。 [count] The car has a road/ground clearance of seven inches. [=the bottom of the car is seven inches above the road/ground]这辆轿车的底盘高出地面七英寸。 a bridge with a 100-foot clearance above the water高出水面l00英尺的桥 3 [noncount] : the act or process of removing things (such as trees or old buildings) from an area清理；清除 the clearance of forests for farming砍伐树林以从事农耕 slum clearance to make room for new housing拆迁贫民窟以腾出地方建新住房 |
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