重点讲解：
1. all of
一共；足足；至少；
eg. It took him all of 41 minutes to score his first goal.
足足过了41分钟他才进了第一个球。
eg. I'm just checking up on Kim. It'll take me all of five minutes.
我只是要督促一下金，总共也就需要5分钟。
2. promise to do sth.
承诺；保证；答应做某事；
eg. The post office has promised to resume first class mail delivery to the area on Friday...
邮局承诺于星期五恢复对这个地区第一类邮件的递送。
eg. The program has lived up to its promise to promote family welfare.
这个项目恪守了其改善家庭福利的承诺。
3. either...or...
不是……就是……；要么……要么……；
eg. You can vote either in person or by proxy .
你可以亲自投票或请人代理。
eg. His yawns suggested he was either tired or bored.
他呵欠连天说明他不是疲倦，就是厌倦。
4. be late for
迟到；
eg. The manager fired Bob because he was always late for work.
鲍勃因上班总迟到而被经理解雇。
eg. He was late for school, as was often the case with him.
他上学迟到已是家常便饭了。
5. the same as
与…相似；与…一样；
eg. This answer must be a crib: it's exactly the same as Jones's.
这个答案可能是抄袭来的，跟琼斯的答案一模一样。
eg. Rick hasn't changed. He looks exactly the same as he did at school.
里克一点儿没变，他和上学时一模一样。