80. on board 到船上,在船上,上火车或飞机
81. boast of (or about) 吹嘘
82. out of breath 喘不过气来
83. in brief 简言之
84. in bulk 成批地,不散装的
85. take the floor 起立发言
86. on business 出差办事
87. be busy with sth 忙于某事
be busy doing sth. 忙于做某事
88. last but one 倒数第二
89. but for (=without)要不是（表示假设）
90. buy sth. for…money 用多少钱买
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