we must ask people not to cyt down trees now.保持句意不变
we must ______ people ______cutting down trees now.
人气：443 ℃ 时间：2019-08-20 21:16:39
解答
we must ( prevent ) people ( from )cutting down trees now.
prevent sb.from doing sth 阻止某人做某事
我们现在必须阻止人们砍伐树木.
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