Abandon oneself to something 　 — allow onself to be completely controlled by something, especially passions or impulses. 　 — 完全屈服于……；陷入…… 　 Example: Tom tried and tried but failed again and again. Finally, he abandoned himself to despair.

Abase oneself 　 — make oneself humble. 　 — 降低自己的身分 　 Example: In ancient times, people of low social status often abased themselves in the presence of an influential or powerful person.

Abide by something 　 — observe or follow something. 　 — 遵守某事 　 Example: When you play a game, you must abide by the rules and regulations concerned.

Back a/the wrong horse 　 — put one's faith in someone who later loses or something which fails. 　 — 下错了赌注；支持输家 　 Example: The manager backed a wrong horse by giving the much-coveted job to Jack, who turned out to have a criminal record.

Back away (from doing something) 　 — move away (from doing something) because of dislike or fear. 　 — 因害怕或厌恶而后退 　 Examples: 1. The cat backed away as the stranger raised his hand to hit it. 2. In the face of strong opposition, the government has backed away from increasing taxes.

Call forth/out something 　 — cause something to be seen or used. 　 — 使某事物出现；引出某事物 　 Examples: 1. Lily's outward appearance was so attractive that it called forth admiration from every man in the office. 2. Difficulties in life may call out a person's good qualities not easily seen in good life.

Call in someone/something 　 — ask someone to come. 　 — 请某人来 　 Example: Please call in my family doctor. 　 — request the return of something. 　 — 下令收回某物 　 Examples: 1. The banks have called in all the old one-dollar notes. 2. A Japanese car maker has called in some cars with engine faults.

Dab hand at (doing) something, a 　 — clever at (doing) something. 　 — (做)某事的能手 　 Example: As Susan is a dab hand at interior design, let her decorate the new apartment for you.

Dabble in something 　 — play with water by moving one's hands and feet about. 　 — 涉水 　 Example: The children enjoyed dabbling in the river water after the rain. 　 — do things in a half-serious manner. 　 — 涉猎；浅尝辄止 　 Example: Sean does not like stamp-collection but only dabbles in it at his leisure.

Haggle over/about something 　 — argue in an attempt to fix a price on something. 　 — 讨价还价 　 Examples: 1.Mrs Li haggled with the storekeeper over the goods she was buying. 2. I seldom haggled about the food price when I found it reasonable.

— I don't agree with you.
— 恕我不能赞同
Example: You may think that John should be offered the job, but I beg to differ. John has no practical experience and is not highly motivated.

I/You bet
— I am/ you are sure.
— 我敢肯定；你可确信
Examples: 1.The weather is fine. I bet it won't rain.
              2. You bet I'll arrive at the airport before everyone else.

Jack-in-the-box, a
— a person who fidgets or does not sit still.
— 盒中的玩偶；比喻一个人静不下来
Example: “Boy! Sit properly! Don't jump up and down like a jack-in-the-box.”

Jack of all trades is master of none, a
— person who can do many different kinds of work may not be good at any of them.
— 博而不精的人
Example: This chap repaired the television and installed the air-conditioner all in one day, but none of the work he did seemed reliable. Isn't he a jack of all trades master of none?

Oblivious of/to something
— unaware of something; not noticing something.
— 未觉察某事；不注意某事
Example: What is wrong with James? He seems completely oblivious of what has happened here.