| able | 能够的；有能力的 |
| enable | 使……能够；使……有能力 something enable somebody to do something |
| ability | 能力；才能 have the ability to finish the work; a man of ability |
| absence | 不在 |
| absent | 不在的 |
| accept | 接受 |
| acceptable | 可以接受的 |
| accident | 事故，意外事件 |
| accidentally | 意外地 |
| accurate | 精确的 |
| accurately | 精确地 |
| across | 横过；穿过；swim across the river; walk across the road |
| cross | 越过；穿过；n.十字架的东西 |
| through | 穿过；通过 through a tunnel |
| act | 扮演；表演；行动 |
| action | 行动 |
| active | 积极的；活跃的 take an active part in |
| actively | 积极地 |
| activity | 活动 |
| actor | 男演员 |
| actress | 女演员 actresses(pl.) |
| actually | 实际地；现实地 |
| actual | 实际的 |
| add | 添加，增加 add…to… |
| addition | 增加 in addition = besides 另外 |
| adopt | 采用；采纳；收养 |
| adoption | 采用；采纳；收养 |
| advantage | 有利条件；优势；优点 |
| disadvantage | 不利；劣势；短处 |
| advertisement | 广告 |
| advertise | 做广告 |
| advice | 劝告，忠告；建议 give somebody some advice |
| advise | 劝告 |
| Africa | 非洲 |
| African | 非洲的 |
| age | 时代；年龄 |
| aged | 有年岁的；上年龄的 |
| agent | 代理人 |
| agency | 代理处 |
| air conditioner | 空调 |
| air-conditioned | 有空调的 |
| alive | 活着的，存在的 the biggest animals alive; The dog is alive. |
| live | 居住；活着；生活 |
| living | 活着的 living fish |
| life | 生命；生活；人生 lives (pl.) |
| amazing | 令人惊讶的 |
| amaze | 使大为惊讶 |
| ambition | 雄心；野心 |
| ambitious | 有雄心的 |
| America | 美国；美洲 |
| American | 美国人；美国的 |
| amusement | 娱乐；消遣；娱乐活动 |
| amuse | 给……娱乐；逗……乐 |
| amusing | 引起乐趣的 |
| angry | 生气的；愤怒的 be angry with somebody |
| angrily | 生气地 |
| announce | 宣布 |
| announcement | 宣布 |
| announcer | 播音员 |
| apologize | 道歉 |
| apology | 道歉 |
| appear | 出现 |
| disappear | 消失 disappear in the crowds |
| argue | 争吵，争论 argue with somebody |
| argument | 争吵 ha argument with somebody |
| arrange | 安排，布置 |
| arrangement | 安排 |
| arrive | 到达；达到 |
| arrival | 到达 |
| art | 艺术 |
| artist | 艺术家；画家 |
| article | 文章 |
| Asia | 亚洲 |
| Asian | 亚洲的 |
| attract | 吸引，引起 |
| attraction | 吸引；吸引力；吸引物 |
| attractive | 有吸引力的 become attractive |
| Australia | 澳大利亚；澳洲 |
| Australian | 澳大利亚人；澳大利亚的 |
| automatic | 自动的 |
| automatically | 自动地 |
| ...... | ...... |
