A字母开头的单词或词组(第20页)：
- affect
- Africa
- afford
- afraid
- African
- afternoon
- afterward
- after
- again
- against
- age
- agent
- ago
- agreement
- ahead
- agree
- agriculture
- aid
- aim
- air
- aircraft
- airline
- airplane
- airport
- alarm
- all
- alcohol
- alive
- alike
- alliance
- allied
- allow
- almost
- along
- alone
- aloud
- already
- also
- although
- always
- altogether
- amaze
- ambassador
- ambitious