1 be in the air 将要发生的事情
the feeling or idea that something new is about to happen or is going to change.
example: from the arguments going on at the meeting, it seems that a change in policy is in the air.
2 clear the air 消除误会
to settle a dispute and restore good relations
example: we had a meeting with the workers, and i think we’ve cleared the air now.
3 cost an arm and a leg 极其昂贵
to be very expensive
example: i love that fur coat. however, i don’t think i’m going to buy it because it costs an arm and a leg.
4 a bad egg 缺乏道德的人
somebody who has no moral principles and should be avoided
example: you mustn’t lend tim money, he’s a bad egg. you’ll never see him or your money again!
5 in the bag 稳操胜券
said of an achievement which is secure
example: we have the deal in the bag. the client came in this morning to sign the agreement.