81. on board 到船上, 在船上, 上火車(chē)或飛機(jī)
82. boast of (or about) 吹噓
83. out of breath 喘不過(guò)氣來(lái)
84. in brief(=in as few words as possible)簡(jiǎn)言之
85. in bulk 成批地,不散裝的

86. take the floor 起立發(fā)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(shù)第二.
90. but for (=without) 要不是. 表示假設(shè)