61. on the average (=on average, on an average) 平均
62. (be) aware of (=be conscious of , having knowledge or consciousness)意識到,知道.
63. at the back of (=behind) 在…後面
64. in the back of 在…後部(裡面); on the back of 在…後部(外面); be on one’s back(=be ill in bed) 臥病不起.
65. at one’s back(=supporting or favoring sb.) 支援,維護; have sb. at one ’s back 有…支援, 有…作後臺
66. turn one’s back on sb. (=turn away from sb. in an impolite way) 不理睬(某人),背棄,拋棄
67. behind one’s back 揹著某人(說壞話)
68. be based on upon 基於
69. on the basis of 根據…, 在…基礎上
70. beat…at 在…運動專案上打贏
71. begin with 以…開始. to begin with (=first of all) 首先, 第一(經常用於開始語)
72. on behalf of (=as the representative of) 以…名義
73. believe in(=have faith or trust in; consider . to be true) 相信,依賴,信仰.
74. benefit (from) 受益,得到好處.
75. for the benefit of 為了…的'利益(好處)
76. for the better 好轉
77. get the better of (=defeat sb.) 打敗, 勝過.
78. by birth 在出生上,論出身,按血統 at birth 在出生時; give birth to 出生
79. blame sb. for sth. 因…責備某人 . blame sth. on sb. 把…推在某人身上
80. in blossom開花(指樹木) be in blossom開花(強調狀態) come into blossom開花(強調動作)
81. on board 到船上, 在船上, 上火車或飛機
82. boast of (or about) 吹噓
83. out of breath 喘不過氣來
84. in brief(=in as few words as possible)簡言之
85. in bulk 成批地,不散裝的
86. take the floor 起立發言
87. on business 出差辦事.
88. be busy with sth.於某事 。 be busy doing sth. 忙於做某事
89. last but one 倒數第二.
90. but for (=without) 要不是. 表示假設
91. buy sth. for…money 用多少錢買
92. be capable of 能夠, 有能力 be capable of being +過去分詞是能夠被…的
93. in any case(=for love or money, at any rate, at any price, at any cost , whatever happens; anyhow)無論如何
94. in case (=for fear that) 萬一;
95. in case of (=in the event of)如果發生…萬一 in the case of 至於…, 就…而言
