relax
/rɪˈlæks/verb
1- make or become less tense or anxious（使）松弛; （使）放松：
no obj. he relaxed and smiled confidently他放松下来, 面露自信的笑容
as adj. relaxing a relaxing holiday.让人放松的假日。
1.1
- no obj. rest or engage in an enjoyable activity so as to become less tired or anxious（为消除疲劳、烦恼）休息（或娱乐）, 放松：
the team relax with a lot of skiing.
运动队进行大量滑雪活动使队员轻松愉快。
1.2
- with obj. cause (a limb or muscle) to become less rigid放松（四肢, 肌肉）：
relax the leg by bringing the knee towards the chest.
将膝盖靠近胸口使腿部放松。
1.3
- with obj. make (a rule or restriction) less strict while not abolishing it放宽（规则, 限制）：
the ministry relaxed some of the restrictions.
该部放宽了一些限制。
派生词
relaxer
noun词源
late Middle English: from Latin relaxare, from re- (expressing intensive force) + laxus 'lax, loose'.