go bananas 发怒、发疯
例句：Don’t talk about math any more. I’ll go bananas.
get the picture 了解某事
例句: I think he got the picture from our conversation.
live it up 狂欢一场，过着逍遥的日子
例句：The neighbors have been living it up ever since they won the prize.
turn a blind eye 熟视无睹
例句：The manager turned a blind eye when his staff were late.
ring a bell 看上去或听起来非常熟悉
例句：That face rings a bell, where have I seen him before?
in the bag 稳操胜券
例句：We have the deal in the bag. The client came in this morning to sign the agreement.
on a shoestring 生活拮据；小本经营
例句：He started his business on a shoestring and built it up gradually.