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
92.be capable of 能够,有能力
be capable of being + 过去分词:是能够被……的
93.in any case(=for love or money,at any rate,at any price,at any cost,whatever happens;anyhow)无论如何
94.in case(=for fear that)万一
95.in case of(=in the event of)如果发生……万一
in the case of 至于……,就……而言
96.in no case 在任何情况下都不(放句首倒装句)
97.be cautious of 谨防
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