1. on board 到船上, 在船上, 上火车或飞机
2. boast of (or about) 吹嘘
3. out of breath 喘不过气来
4. in brief(=in as few words as possible)简言之
5. in bulk 成批地,不散装的
6. take the floor 起立发言
7. on business 出差办事.
8. be busy with sth.于某事 。 be busy doing sth. 忙于做某事
9. last but one 倒数第二.
10. but for (=without) 要不是. 表示假设
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