12、Frugal：节俭的。
13、call off：停止;取消。
14、Cancel：取消：
eg：Why was the baseball game cancelled yesterday?为什么昨天的棒球比赛取消了?
15、Put off： 推迟。
eg：The dicided to put off the meeting until after Cristmas.他们决定会议推迟到圣诞节后举行。
16、End：结束。
eg：The government acted to end a baker's strike in the city.政府采取行到结束城里面包师傅的罢工。
17、Participate in：参加。
eg：Did you participate in the discussion?你参加讨论了吗?
18、make up one's mind：打定主意;下定决心。
19、Want：想。
eg：I can study any subject you want to.我能研究你想研究的任何一个课题。
20、Promise：许诺。
eg：You've got to promise me that you won't do that again.你得答应我不再干那种事。
21、Endanger：危及;危害。
eg：They claim that the herbicide they are using will not endanger human life.他们声称，他们使用的除草剂不会危害人们的生命。
22、Endorse：签名;批准。
eg：The application was endorsed by the committee.申请书已由委员会批准。
23、Enlarge：扩大;放大。
eg：The UN secretary-general yesterday recommended an enlarged peacekeeping force.昨天联合国秘书长提议扩大维和部队。
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