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 basic of 根据在...基础上
70.beat....at 在...运动项目上打赢
71.begin with 以....开始
72.on behalf of 以...名义
73. believe in(=have faith or trust in;consider sth./sb. to be true) 相信，依赖，信仰.
74. benefit (from) 受益，得到好处.
75. for the benefit of 为了…的利益(好处)
76. for the better 好转
77. get the better of (=defeat sb.) 打败，胜过.
78. by birth 在出生上，论出身，按血统 at birth 在出生时；give birth to 出生
79. blame sb. for sth. 因…责备某人 . blame sth. on sb. 把…推在某人身上
80. in blossom开花(指树木) be in blossom开花(强调状态) come into blossom开花(强调动作) 81. on board 到船上，在船上，上火车或飞机
82. boast of (or about) 吹嘘
83. out of breath 喘不过气来
84. in brief(=in as few words as possible)简言之