ability 能力have the ability to do. 有能力做某事

able\t能够的be able to do. 有能力做某事

advantage 优点take advantage of 利用某人/某事

above 在上面above all 最重要的是

abroad 在国外go abroad 出国Study abroad 留学

absent 缺席的absent from 缺席某事

accept 接受

accident 事故by accident 偶然地a traffic accident 一场交通事故

according to 根据

account 账目

accountant 会计（员）

ache 疼痛

achieve 获得achieve your dream make your dream come true 实现你的梦想

across 横过across from 在的对面

act 表演outdoor activities 户外活动take action to do 采取行动做某事

take an active part in 积极参加act as 扮演某人

actually 实际上

add 添加add up to 合计达

address 地址

admire 钦佩

adult 成年人

advertisement 广告

advise 忠告advise doing 建议做某事advise to do 建议某人做某事

afford 负担的起（费用）cant afford to do 不能够负担得起做某事

afraid 害怕的be afraid of (doing)害怕（做）某事be afraid to do 害怕做某事

Im afraid that 恐怕

after 后来after all 终究look after 照顾

again 再一次again and again over and over again 反复地

against 对着be against 反对

age 年龄at the age of 在的年龄

ago 以前

agree 同意agree to 同意某事agree to do 同意做某事agree with 同意某人的看法或意见

ahead 在前go ahead 用吧

aid 援助