|
refrain, restrain, constrain refrain 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. 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。 | 
