常見(jiàn)例句noun [ U, + sing/pl verb ]Air traffic control at Heathrow have given us clearance to land in 20 minutes. 希思羅機(jī)場(chǎng)的空中交通調(diào)度人員已經(jīng)準(zhǔn)許我們20分鍾後降落。 返回 air traffic control