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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.getback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 6. at least至少at breakfast早餐时at desk在桌前at once立刻，马上at school在上学at the same time同时at work在工作be good at=do well in 善长laugh at嘲笑notat all一点也不at first起初at night在晚上at noon中午.at the age of // when sb. wasyears old 在岁时at last / in the end / finally 最后、终于.at the beginning of the twenty-first century在21世纪初，at the end of 在终点、结尾at the moment // now现在at the foot of在脚下at Christmas在圣诞节at any moment任何时候at times(sometimes)有时，偶尔at the doctors在医务室be bad at不善长 7.for example例如for ever永远be good for对有益be bad for对有害for long=for a long time长期for short 简称be short for是的简称TV is short for television | 
