1、get a kick out of doing something  

从……得到很大的乐趣

He gets a kick out of racing.

2、take kindly to something/someone  愿意接受

Don't you feel that people in the lab don't take kindly to a nosy  reporter?

3、kill someone with kindness  好得让人受不了

The old lady almost killed me with kindness when I lived at her home.

4、parade one's knowledge  买弄学问

He is a well-learned man, bit he never parades his knowledge.

5、be at large  逍遥法外（也可以形容动物不受约束）

The murderer was still at large. The victim's parents was determined to find enough evidence to sue him to court.

6、rest on one's laurels  故步自封，吃老本

You are sure to be lagged behind if you rest on your laurels.

7、turn over a new leaf  洗心革面

The juvenile delinquent promised that he would turn over a new leaf if he could be given lenient punishment.

8、have a hollow leg  （喝酒）海量

The best man has a hollow leg. He drinks a lot instead of the bridegroom.

9、pull someone's leg  开某人的玩笑

Never ever pull his leg. He is a man without a sense of humor. He takes everything seriously.

10、keep someone at arm's length  与某人保持距离

My boss is my uncle. In order to avoid unnecessary misunderstanding, I'd better keep him at arm's length in company.

11、let someone down  使某人失望

Joe really let me down by having broken his promises for several times.

12、can't for the life of one  怎么……也不行

I thought I could recite my speech backwards, but when I stood in front of the audience, I couldn't for the life of me remember what to say.

13、air one's linen in public  家丑外扬

The wife was often beaten by her husband, but she never told others. She didn't want to air her linen in public.

14、shoot from the hip  信口开河

Don't take Jay's words to heart. He shouldn't have shot from the hip.

15、by hook or by crook  千方百计得，不择手段得

He rose to that position by hook or by crook.

16、blow hot and cold  出尔反尔，喜怒无常

Do you think he'll support you? He is the type who blows hot and cold.

17、make it hot for...  刁难某人

Out section manager is a woman. Our general manager always looks down upon her and makes everything hot for her.

18、have the lots for someone  迷恋某人

You have to stop her. She has the lots for a married man.

19、bring down the house  博得满堂喝彩

The first-prize winner of the speech contest has brought down the house for several times.

20、be over the hump  已度过难关

The Asian financial crises has almost paralyzed Asian economy. But we are over the hump now.