prevent sb from doing sth 告诉一下怎么个用法.不必告诉与其他词组的区别

prevent sb from doing sth 告诉一下怎么个用法.不必告诉与其他词组的区别
prevent sb from doing sth 告诉一下怎么个用法.不必告诉与其他词组的区别

prevent sb from doing sth 告诉一下怎么个用法.不必告诉与其他词组的区别
阻止某人做某事