消滅; 把…一個接一個地殺死 kill (things or people) one at a time
kill sb/sth ? off
The invaders killed off all the inhabitants of the town.
侵略者將全城居民殺光。
The flood of hunters killed off most of the buffaloes in that area.
大量涌來的獵人捕殺掉了那個地區里的大部分野牛。
This fever has been killing off many of the older people in the city.
城里許多上了歲數的人染上了這種熱病后,相繼而亡。
The factory dumped wastes into the river and killed off the fish.
這家工廠把有毒的廢物傾入河中,把河里的魚全都毒死了。
The low price they asked killed their competition off.
他們索價低廉,使別人無法和他們競爭。
Changed circumstances killed these projects off.
形勢的變化打消了這些計劃。
The president suggested a new law to Congress but many members of Congress were against the idea and they killed it off.
總統建議立一個新法,但由于很多國會議員反對,因此落空了。
The trees were killed off by the severe winter.
在嚴寒的冬天,這些樹相繼被凍死。
In this play, all the characters except one get killed off by the last act, so that we know which one is the murderer.
這出劇到最后一場時,除一個人外,其余的先后都被殺死了,所以我們明白了誰是兇手。