82. back of 在...後面
83. back up後備,支援
84. bare of幾乎沒有,缺乏
85. be able to do能夠
86. be around差不多
87. be available to sb.可用,可供
88. be bound to壹定
89. be capable of doing能夠
90. be concerned with 關心…，涉足…
91. be dying to渴望
92. be fed up with受夠了be tired of
93. be in hospital 住院
94. be in season 上市的/in peak season旺季
95. be in the mood to do sth. 想做
96. be pressed for time時間不夠
97. be tied up with忙於
98. be under the weather 身體不好
99. beat around the bush 拐彎沒角
100. beat the crowd 避開人群
101. before long 不久以後
102. behind schedule 誤點
103. bent on sth. 下定決心做…
104. beside point 離題的,不相幹的
105. beyond one's ability超越某人的能力
106. beyond question 毫無疑問
107. book on reserve 須留的圖書
108. booked up 訂完了
109. bound for開往
110. break down拋錨
111. break though突破
112. break up with和某人分手be through with / be finished with
113. bring about 使…發生
114. bring someone up to date幫某人趕上help someone catch up
115. by accident 偶然
116. by air 通過航空途徑
117. by all means 盡壹切辦法,務必
118. by and by 不久,遲早
119. by chance 偶然,碰巧
120. by far 最,...得多
121. by hand 用手,用體力
122. by itself 自動地,獨自地
123. by means of 用,依靠
124. by mistake 錯誤地,無意地
125. by no means 決不,並沒有
126. by oneself 單獨地,獨自地
127. by reason of 由於
128. by the way 順便說說
129. by virtue of 借助,由於
130. by way of 經由,通過...方法