问题描述：
prevent sb.from doing sth.区别（防止、阻止某人做某事）
prevent sb.from doing sth
STOP sb..from doing sth
KEEP sb.from doing sth
三者有何区别
prevent sb.from doing sth
STOP sb..from doing sth
KEEP sb.from doing sth
三者有何区别
问题解答：
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