1. down: 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 : 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name after根据命名run after追赶3. up (with): come up with找到、提出、赶上 catch/keep 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/put up (raise)ones hands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.到达：arrive
