lest的用法?
问题描述：
lest的用法?
答
lest
conj.
[所连接的状语从句里常用should或原形动词]
以免；生怕；唯恐
例子：
Be careful lest you fall from that tree.
要当心,以免从树上摔下来.
I was afraid lest he might come too late.
我怕他来得太晚.