考研英语易混淆词汇比较记82
refrain, restrain, constrainrefrain v.抑制，禁止，强调抑制一种冲动，是正式用语，为不及物动词，后接介词from。
Students refrain from smoking in the classroom.学生们克制住不在教师抽烟。
restrain v.抑制，约束，指通过管束阻止某事发生，是及物动词，其习惯用法是restrain sb. (sth.) from doing。
She restrains her dog by walking him on a leash.溜狗时，她牵着狗来限制它的活动。
constrain v.强迫，力劝，是及物动词。
A law constrains the government from spending more money than it takes in.法律限制政府开支大于收入。
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