1.step off 走下;跳下
例句:Why had he chosen to step off the platform and fall beneath the train?
他為什么心甘情愿跳下月臺,撲到火車下面去呢?
2.private plane 私人飛機
例句:The mayor of one town was ready to send a private plane to New York to help.
有一個市長準備送一架私人飛機來紐約援助
3.at the time 那時候;當時
例句:At the time I had fully expected to find work before long.
那個時候我還一心盼望不久就可找到工作
。4.lasts forever 永遠;天長地久
例句:No problem lasts forever. Storms always give way to the sun.
沒有解決不了的問題,暴風雨總會讓位于陽光
。