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。