81. on board 到船上，在船上，上火车或飞机
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
