by air

1. 通过航空途径; 乘飞机

She often travels by air.

她常常乘飞机旅行。

clear the air

1. 消除误会(或猜疑)

They held a meeting to clear the air.

他们召开了一次会议来消除误解。

give oneself airs

1. 摆架子

He gives himself such airs that everyone dislikes him.

他那么爱摆架子以致大家都不喜欢他。

in the air

1. 在空中; 向空中

A plane is flying in the air.

一架飞机正在空中飞翔。

2. 悬而未决

The date of the dinner party is still in the air.

宴会的日期尚未确定。

on the air

1. 在广播

That program has been on the air for 25 years now.

那节目已播放了二十五年了。

She didn't know she was on the air when she said those crazy things.

当她说那些疯狂事的时候, 她不知道已经在广播了。

That radio show is still on the air.

那个广播剧还在播送。

put on airs

1. 摆架子

She put on airs after marrying a millionaire.

自从嫁了百万富翁后, 她就摆起架子。

Don't put on airs with us.

别对我们摆架子。

take the air

1. 在户外散步

They used to take the air in the evening.

他们过去常在傍晚时去户外散步。