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内容提要：

        1.put down 放下shut down 把…关上cut down砍掉come down下来、落下slow down 减缓、放慢sit down坐下write down写下get down下来,降落

　　2.after all毕竟.终究after that于是.然后day after day日复一日地one after another相继.挨次soon after不久以后the day after tomorrow后天

　　3. come up with找到、提出catch up with赶上wake up弄醒、醒来send up发射open up开设、开办grow up长大pick up拾起、捡起hands up举手eat up吃光clean up打扫干净give up doing sth.=stop doing sth.放弃做某事

　　4.arrive at/in + n.到达get to +n.到达reach + n.到达arrive / get +adv.到达

　　5.get…back退还,送回去.取回give back归还come back回来at the back of在…的后面on the way (back)home在回家路上

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