介詞 prep.1.在...的背后;在...的后面;向...的背后There is a garden behind the house. 屋后有個(gè)花園。

2.落后于,不如George always falls behind his schedule. 喬治老是不能按時(shí)完成計(jì)劃。3.遲于;晚于She arrived at the office ten minutes behind her usual time. 她到辦公室時(shí)比往常晚了十分鐘。4.支持The senators are fully behind his welfare policy. 參議院的議員們完全支持他的社會(huì)福利政策。副詞 ad. 1.在背后;向背后Mary drove. Her ten-year-old daughter sat behind. 瑪麗開(kāi)車(chē),她的十歲的女兒坐在背后。2.(留)在原處;(遺留)在后Both of them stayed behind. 他們兩個(gè)留下未走。3.遲;落后[(+with/in)]We are lagging far behind. 我們大大落后了。