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.于某事 . be busy doing sth. 忙于做某事

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 至于…， 就…而言

96. in no case在任何情況下都不(放句首倒裝句)

97. be cautious of 謹防

98. center one's attention on(=focus one's attention on) 把某人的注意力集中在…上

99. be certain of (=be sure of) 有把握， 一定。

100. for certain of (=for sure )肯定地，有把握地

101. by chance(=accidentally， by accident)偶然

102. for a change換換環境(花樣等)

103. charge sb. with …控告某人犯有…

104. in charge of (=responsible for) 負責(某事) in the charge of …由…管

105. take charge of (=to be or become responsible for)負責管理(照顧)

106. charge…for 因…索取(費用) ， charge sb. with sth. 控告某人犯有…

107. round the clock(=all day and all night， usually without stopping) 晝夜不停地

108. comment on 評論

109. commit oneself to 使自己承擔… commit sb. to prison把某人送進監獄; commit one's idea to writing 把某人的想法寫下來; commit a matter to a committee 把某事交給委員會討論

110. in common (和…)有共同之處，共用。 be common to sb. 是與某人所共有的

111. keep company with (=be friendly and go out together) 和…要好。

112. compare…with … 把…與…比較

113. compare…to… 把…比作…

114. by comparison 比較起來

115. in comparison with (=in contrast to) 和…比起來

116. compensate for (=give sth. to make up for) 補償， 賠償，彌補 compensate sb. for sth. 賠償，彌補

117. complain of (or about)抱怨;訴苦;控告;complain about 抱怨某人或事情; complain to sb. about sth. (or sb.) 向某人抱怨…; complain (抱怨); complement (補充); compliment (恭維)

118. comply with (=act in accordance with a demand， order， rule etc.) 遵守， 依從

119. conceive of (think of， imagine， consider) 想象，設想

120. concentrate on (or upon) 集中，專心