1.与“down”有关的短语 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.与“after”有关的短语 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