acen.1.(紙牌等中的)幺點(diǎn)，“A”牌；2.(網(wǎng)球等比賽中)發(fā)球得分；3.(在某方面的)佼佼者；adj. 第一流的，杰出的

A:Do you play the acoustic guitar?

B:Usually I play the electric.

acoustic a.1.聽覺的，聲音的;2.(樂器)原聲的

A:Have you acquainted yourself with the material yet?

B:No, I still have to read the book.

acquaint vt.(with)使認(rèn)識，使了解，使熟悉

A:Has the case come to a close?

B:Yes, the suspect was acquitted because there was not enough evidence.

acquitvt.1.宣判……無罪；2.(oneself)使(自己)作出某種表現(xiàn)

A:If you press that red button you will activate the bomb.

B:I’ll be sure not to press it then.

activatevt.使活動(dòng)起來，使開始起作用

A:What do you want to be when you grow up?

B:A feminist activist , working for female rights

activistn.(政治活動(dòng)的)積極分子，活動(dòng)家

A:Do you drink tea?

B:Yes, but I am addicted to coffee.

addictn.1.有癮的人;2.入迷的人；vt. 使成癮，使入迷

A:I watch too much television.

B:Me too, it is addictive

addictiveadj.使人入迷的，使人上癮的

A:Are you going to wear those old shoes to the wedding?

B:Yeah, I hate adhering to formalities.

adherevi.(to )1.黏附，附著;2.遵守，堅(jiān)持;3.追隨，支持

A:Your poster has fallen down from the wall.

B:I ran out of adhesive and forgot buy some more.