62 aware of 意识到,知道 63 at the back of aware of 意识到,知道.
63. at the back of 在 后面
64. in the back of 在 后部; on the back of 在 后部; be on one s back 卧病不起.
65. at one s back 支持,维护; have sb. at one s back 有 支持, 有 作后台
66. turn one s back on sb. 不理睬,背弃,抛弃
67. behind one s back 背着某人
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
71. begin with 以 开始. to begin with 首先, 第一
72. on behalf of 以 名义
73. believe in 相信,依赖,信仰.
74. benefit 受益,得到好处.
75. for the benefit of 为了 的利益
76. for the better 好转
77. get the better of 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 be in blossom开花 come into blossom开花
81. on board 到船上, 在船上, 上火车或飞机
82. boast of 吹嘘
83. out of breath 喘不过气来
84. in brief简言之
85. in bulk 成批地,不散装的
86. take the floor 起立发言
87. on business 出差办事.
88. be busy with sth.于某事 。 be busy doing sth. 忙于做某事
89. last but one 倒数第二.
90. but for 要不是. 表示假设
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