A: Stop! You are not authorized to enter this section of the building.

B: Oh, I’m sorry, I didn’t realize that I needed special permission.

authorize vt. 授权，批准

A: What are you reading?

B: Nelson Mandela’s autobiography, I highly recommend it.

autobiography n. 自传

A: Is that dog over there real?

B: No, I think that it is just an automation.

automation n. 自动化（技术），自动操作

A: I am moving to an autonomous region of the country.

B: Gosh, that will be an interesting experience.

autonomous a. 1. 自治的；2. 独立自主的

A: You are very independent.

B: My autonomy is protected by the law.

autonomy n. 1. 自治，自治权；2. 人身自由，自主权

A: Where you able to get through to the ticket office when you telephoned?

B: I tried several times, but to no avail.

avail n. [一般用于否定句或疑问句中] 效用，利益，帮助

A: What was the film about?

B: A guy trying to avenge the killing of his brother. It was quite violent.

avenge vt. 1. 为…复仇，报…之仇；2. (on)向…报仇

A: Let’s turn left down the next road.

B: Good idea, that way we can avert the traffic jam.

avert vt. 1. 防止，避免；2. 转移（目光、注意力等）

A: I heard that the national aviation company owes a lot of money to the government.

B: Well, it must be because of the price of new planes.

aviation n. 1. 航空，航空学；2. 飞机制造业

A: I was filled with awe when I watched the sun rise this morning.

B: It is a shame that I missed it, I was still in bed.

awe n. 敬畏，惊惧

vt. 使敬畏，使惊惧

be / stand in awe of 敬畏

A: At what speed does the earth spin on its axis?

B: I am not quite sure, you should check in your textbook.

axis n. 1. 轴，轴线，中心线；2. 坐标轴，基准线

A: My brother got married last year.

B: That surprises me, I thought that he would remain a bachelor for the rest of his life.

bachelor n. 1. 单身男士，单身汉；2. 学士，学士学位

A: That is a nice badge that you are wearing.

B: Thanks, I bought it at the market this morning.

badge n. 1. 徽章，证章；2. 标记，标志；3. 象征

A: Would you like have a game of badminton with me this evening?

B: Sorry, but I only play football.

badminton n. 羽毛球运动

A: Did you enjoy the film?

B: Yeah, but I was baffled by the plot.

baffle vt. 使困惑，难住

A: Was the criminal released from jail?

B: Yes, but only on bail.

bail n. 1. 保释金；2. 准许保释

vt. 1. (out) 保释，帮助脱离困境；2. 用桶(从船里)舀水

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