47. apply to sb. for sth. 为…向…申请; applyfor申请; apply to 适用。
48. apply to 与…有关;适用
49. approve of (=consent to, be in favorof, favor, agree to, consider good, right) 赞成， approve vt. 批准
50. arise from(=be caused by) 由…引起。
51. arrange for sb./sth. to do sth. 安排…做…
52. 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);
53. be ashamed of (=feel shame, guilt orsorrow because of sth. done)以…为羞耻
54. assure sb. of sth. (=try to cause tobelieve or trust in sth.) 向…保证，使…确信。
55. attach(to) (=to fix, fasten; join) 缚， 系 ,结
56. make an attempt at doing sth. (to dosth.) 试图做…
57. 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
58. attitude to/ toward …对…的态度。看法
59. attribute…to…(=to believesth. to be the result of…)把.。归因于..,认为.。是.。的结果
60. on the average (=on average, on anaverage) 平均
61. (be) aware of (=be conscious of ,having knowledge or
consciousness)意识到，知道。
62. at the back of (=behind) 在…后面
63. in the back of 在…后部(里面); on theback of 在…后部(外面); be on one’s back(=be
ill in bed) 卧病不起。
64. at one’s back(=supportingor favoring sb.) 支持，维护; have sb. at one’s back
有…支持，有…作后台
65. turn one’s back on sb. (=turnaway from sb. in an impolite way)
不理睬(某人),背弃，抛弃
66. behind one’s back 背着某人(说坏话)
67. be based on / upon 基于
68. on the basis of 根据…, 在…基础上