relax是动词，通常可用作及物动词和不及物动词使用，有放松，休息，松懈，松开，宽慰等含义。
relax的释义
v. 放松; 休息; 宽慰; (使) 冷静，放心，镇定; (使) 放松，松懈; 松开;
第三人称单数：relaxes；现在分词：relaxing；过去式：relaxed；过去分词：relaxed
relax的用法
一.用作及物动词
1.（使）（身体）放松；（使）松弛
I ought to relax and stop worrying about it...
我应该放松一下，不要再担心它了。
For the first time since his arrival he relaxed slightly...
自从他来了之后这是他第一次稍微放松一点儿。
Do something that you know relaxes you.
做点儿让你自己放松的事情。
His face relaxes into a contented smile.
他面部肌肉放松下来，露出了满意的微笑。
2.松手；放开；放松
He gradually relaxed his grip on the arms of the chair.
他紧握椅子扶手的手逐渐松开了。
3.放宽，放松，削弱（规定或控制）
Rules governing student conduct relaxed somewhat in recent years...
近年来约束学生行为的规定有所放宽。
二.用作不及物动词
变得轻松；变得随和；变得和蔼
I can't relax until I know you have arrived safe and sound.
我只有知道你平安到达才能放心。
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