82. boast of (or about) 吹嘘
83. out of breath 喘不过气来
84. in brief(=in as few words as possible)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 (=without) 要不是。 表示假设 91. buy sth. for…money 用多少钱买