36.ahead of 在…之前,超过
ahead of time 提前
37.in the air
1)不肯定，不具体
2)在谣传中
38.above all (=especially,most important of all) 尤其是，最重要的
39.in all (=counting everyone or everything,altogether) 总共，总计
40.after all 毕竟，到底
(not) at all 一点也不
all at once(=suddenly)突然
once and for all 只此一次
above all 最重要的
first of all 首先
all in all 大体上说
be all in 累极了
all but 几乎
41.allow for (=take into consideration, take into account) 考虑到,估计到
42.amount to (=to be equal to) 总计,等于
43.answer for (undertake responsibility for, be liable for, take charge for) 对…负责
44.answer to (=conform to) 适合，符合
45.be anxious about 为…焦急不安 或
anxious for
46.apologize to sb.for sth.为…向…道歉
47.appeal to sb.for sth.为某事向某人呼吁
appeal to sb.对某人有吸引力
48.apply to sb.for sth.为…向…申请
apply for 申请
apply to 适用
49.apply to 与…有关适用
50.approve of (=consent to, be in favor of, favor, agree to, consider good, right) 赞成
approve vt.批准
51.arise from(=be caused by) 由…引起
52.arrange for sb.sth.to do sth.安排…做…
53.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)
54.be ashamed of (=feel shame,guilt or sorrow because of sth.done) 以…为羞耻
55.assure sb.of sth.(=try to cause to believe or trust in sth.) 向…保证,使…确信
56.attach(to) (=to fix,fasten join) 缚,系 ，结
57.make an attempt at doing sth.(to do sth.) 试图做…
58.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
59.attitude to toward …对…的态度看法
60.attribute…to…(=to believe sth.to be the result of…)把……归因于……,认为……是……的结果
61.on the average (=on average,on an average) 平均
62.(be) aware of (=be conscious of ,having knowledge or consciousness)意识到，知道
63.at the back of (=behind) 在…后面
64.in the back of 在…后部(里面)
on the back of 在…后部(外面)
be on one's back(=be ill in bed) 卧病不起
65.at one's back(=supporting or favoring sb.) 支持，维护
have sb.at one's back 有…支持,有…作后台
66.turn one's back on sb.(=turn away from sb.in an impolite way) 不理睬(某人)，背弃，抛弃
67.behind one's back 背着某人(说坏话)
68.be based on upon 基于
69.on the basis of 根据…,在…基础上
70.beat…at 在…运动项目上打赢