prevent sb from doing sth与stop sb from doing sth用法相同,在主动语态中from可以省略,被动语态中不行。 keep sb from doing sth中的from无论在主动语态中还是在被动语态中都不能省略。 如果省略就会变成keep sb doing sth (使某人一直做某事) protect...from...表示“保护……不受……侵袭,挡住,防御”。 from后接能带来伤害或损害之物。 词义:prevent sb from doing sth =keep sb from doing sth =stop sb from doing sth 阻止某人做某事 protect…from… 保护……不受…… |
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