17.Round the clock 夜以继日的

　　To do something continuously, without a break or pause

　　Example: The ambulance services worked round the clock hauling people trapped in the building to safety。

　　18.By chance 偶然，意外的

　　Unexpectedly; with no prior planning

　　Example: By chance, I bumped into my wife in the shopping mall

　　19.Keep one’s cool 保持冷静

　　To stay calm in a difficult situation

　　Example: If the traffic is jamed, the only thing to do is keep your cool, or get out of the car and walk!

　　20.In a tight corner 处于困境

　　In an extremely difficult situation

　　Example: Whenever I get into a tight corner, I try to rely on quick thinking to get out of it。

　　21.Fall on deaf ears 不加理睬的，不听取

　　Not to take any notice of what is said

　　Example: The city council’s order that garbage should be put in thebins fell on deaf ears; the sidewalks are still littered with trash!

　　22.Keep in the dark 隐瞒

　　To keep something secret

　　Example: We know my brother has a new girlfriend, but he's keeping her name in the dark。

　　23.Take things easy 放轻松

　　To relax

　　Example: It's better for our health to take things easy than to worry about problems all the time。

　　24.Catch one’s eye 吸引某人注意

　　To attract somebody’s attention

　　Example: A movement behind the curtain caught my eye I thought it was a burglar and rushed out of the room!

　　25.Eat like a horse 吃得很多

　　To eat a lot; to have a very big appetite

　　Example: Fred eats like a horse. When I was a growing lad like him, I used to eat a lot, too。

　　26.Turn a blind eye 。熟视无睹

　　To ignore an action, even though one should do something about it

　　Example: Parents will spoil their children if they constantly turn a blind eye to their bad behavior。

　　27.Have an eye for something 对某事(某物体)了解得非常清楚

　　To be very good at doing something, or have a great understanding of something。

　　Example: As a botanist, he has to describe and draw plants accurately, so he must have an eye for detail。

　　28.Keep an eye on 照看， 密切注视

　　To watch carefully; to look after

　　Example: Keep an eye on my purse I'm just going to the bathroom。

　　29.Lose face 丢脸

　　To have one's reputation spoiled; to be embarrassed

　　Example: The large drug houses have lost face, because smaller companies are selling similar products at a cheaper price!

　　30.Lead the field 处于领头地位

　　To be the most successful person or group in an activity

　　Example: For decades, the House of Dior led the field in elegant fashion design

　　31.Get out of hand 失去控制

　　To be out of control

　　Example: The problem of suicide bombings is getting out of hand; there seems to be no way to stop them。

　　32.Give a hand 提供帮助

　　To help somebody with something

　　Example: Please give me a hand and hold this board while I paint it。

　　33.Learn by heart 牢记

　　To memorize something; to have learned something word for word or very precisely。

　　Example: At school we often learned Shakespeare’s sonnets by heart and recited them in front of the class。