Water vapor is lighter, which would otherwise not rise into air.

水汽(比空气)较轻，否则它不会升到空中。

youdao

Before long 40 worshippers were crammed into Air Force One's conference room.

很快，40名信徒便挤进了空军一号会议室。

youdao

All that is solid melts into air," Karl Marx said, evoking the accelerating transformation of modern economic and social life.

正如卡尔马克思所说，“一切坚不可摧的都烟消云散了“,唤起了现代经济和社会生活,产生变革的加速。

youdao

Mars has less gravity. My attempts to walk resulted in jumps and hops, which took me into the air.

VOA: special.2010.07.10

All that is solid melts into air," Karl Marx said, evoking the accelerating transformation of modern economic and social life.

正如卡尔马克思所说，“一切坚不可摧的都烟消云散了“,唤起了现代经济和社会生活,产生变革的加速。

耶鲁公开课 - 现代诗歌课程节选

So like, right now, I'm kind of looking into the military and the air force

所以现在我想参军和空军，

我要当女军人 - SpeakingMax英语口语达人

The company has also branched out into air-conditioners, which it hopes will become China's next consumer-appliance fad.

CNN: ASIANOW - TIME Asia | China: Blazing Refrigerators

The Madras High Court said the copper smelting plant had been "letting out effluents into air and water which is having a devastating impact".

BBC: India court orders Vedanta subsidiary plant to close

As the noonday call to Friday prayers sounded, riot police were firing shots into air thickened with the smoke from a burning vehicle.

CNN: Walking on a Tightrope