Wemustdowhateverwecanto
问题详情: Wemustdowhateverwecanto________theriverfrombeingpollutedanymore.A.separate B.keep C.prevent D.guard【回答】 C。keep…from和prevent…from都有“阻止...
问题详情: Wemustdowhateverwecanto________theriverfrombeingpollutedanymore.A.separate B.keep C.prevent D.guard【回答】 C。keep…from和prevent…from都有“阻止...