/eə(r) ||; ɛr/noun1 [U] the mixture of gases that surrounds the earth and that people, animals and plants breathe 空气: the pure mountain air 山中清纯的空气Open a window -- I need some fresh air. 把窗户打开,我需要呼吸点新鲜空气。The air was polluted by smoke from the factory. 空气被工厂喷出来的烟雾污染了。
2 [U] the space around and above things 空中;天空: to throw a ball high into the air 把球抛到空中in the open air (= outside) 在户外
3 [U] travel or transport in an aircraft 航空;空运: to travel by air 乘飞机旅行an air ticket 飞机票
4 [sing] an air (of sth) the particular feeling or impression that is given by sb/sth 神态;气质;气氛: She has a confident air. 她一副满怀信心的样子。
a breath of fresh air→
BREATHclear the air→
CLEAR³
in the air probably going to happen soon 酝酿中:
A feeling of change was in the air. 人们可以感觉到将要实行变改。 in the open air→
OPEN¹
on (the) air sending out programmes on the radio or television 广播中:
This radio station is on the air 24 hours a day. 这家电台每天24小时全日广播。 vanish, etc into thin air→
THIN¹