1 / a better / an improved / 更好的

2 / a branch / a division / 分支(機(jī)構(gòu))

3 / a plentiful / an abundant / 豐富的

4 / abandon / give up / 放棄

5 / abide by / stick to / 堅(jiān)持，遵循

6 / abnormal / unusual / 不正常的

7 / abrupt / sudden / 突然的

8 / accelerate / step up / 加快

9 / acceptably / satisfactorily / 令人滿意

10 / acclaim / hail / 向……歡呼

11 / account / consideration / 要考慮的事

12 / account for / explain / 解釋

13 / accumulate / collect / 積聚

14 / aircraft / planes / 飛機(jī)

15 / alleviate / lessen / 減輕

16 / allocate / assign / 分配

17 / allocate / distribute / 分配，分布

18 / allow / permit / 允許

19 / almost / practically / 幾乎

20 / although / while / 引導(dǎo)讓步從句

21 / annoying / irritating / 使不愉快

22 / argue / contend / 爭(zhēng)辯

23 / arise / get up / 起床

24 / arouse / excite / 使激動(dòng)

25 / assemble / gather / 聚集

26 / assert / state firmly / 斷言

27 / assume / postulate / 假定

28 / at any price / for love or money / 不惜任何代價(jià)

29 / at stake / in danger / 在危險(xiǎn)中

30 / attend to / wait on / 伺候