1. amount to (=to be equal to) 总计， 等于。
    
2. answer for (undertake responsibility for, be liable for, take charge for) 对…负责。
    
3. answer to (=conform to) 适合，符合。
    
4. be anxious about 为…焦急不安; 或anxious for
    
5. apologize to sb. for sth. 为…向…道歉
    
6. appeal to sb. for sth. 为某事向某人呼吁. appeal to sb. 对某人有吸引力
    
7. apply to sb. for sth. 为…向…申请; apply for申请; apply to 适用。

8. apply to 与…有关;适用
    
9. approve of (=consent to, be in favor of, favor, agree to, consider good, right) 赞成， approve vt. 批准
   
10. arise from(=be caused by) 由…引起。
    
11. arrange for sb./sth. to do sth. 安排…做…
    
12. arrive on 到达; arrive at 到达某地(小地方);得出，作出; arrive in 到达某地(大地方);
    
13. be ashamed of (=feel shame, guilt or sorrow because of sth. done) 以…为羞耻
    
14. assure sb. of sth. (=try to cause to believe or trust in sth.) 向…保证， 使…确信。
    
15. attach(to) (=to fix, fasten; join) 缚， 系 ,结
    
16. make an attempt at doing sth. (to do sth.) 试图做…
    
17. attend to (=give one’s attention, care and thought)注意，照顾;attend on(upon)(=wait upon, serve, look after) 侍候，照料
    
18. attitude to/ toward …对…的态度。看法
    
19. attribute…to…(=to believe sth. to be the result of…)把.。归因于.., 认为.。是.。的结果
    
20. on the average (=on average, on an average) 平均