(1)(使)松开(弛)(make(muscles，grip，etc)become less tense or tight)[I，T+n]：His body/muscles～ed. 他的全身/肌肉松弛下来。The drug will～your muscles. 这药会使你肌肉放松。～one's hold/one's grip/one's grasp on sth 松开抓住/抓住/抓住某物的手;〖同〗loose;〖反〗tense;

(2)(使)放松(休息)((make sb)become less active after work or effort)[I，T+n 无pass]：～a month/for a moment/half an hour 休息一个月/一会儿/半个小时;Just lie back and～. 躺下来休息。The music/A holiday/The pill will help you～(help to～you) after your work/your exams. 工作/考试后，音乐/假日/这药片会帮助你放松的。〖同〗rest;〖反〗work;

(3)(使)松懈(涣散)((cause the force of effort，concentration，etc)become less severe or tense)[I，T+n]：We mustn't～in our efforts. 我们决不能松劲。Her concentration/attention doesn't～for a moment. 她总是聚精会神/全神贯注。never～one's vigilance/one's guard/one's efforts/one's attention 决不放松警惕/警惕/努力/注意力;

(4)放松(心)，缓解(become less worried，anxious or formal)[I，I+prep(into)]：R～when you dance. 跳舞时别紧张。R～and enjoy yourself. 放松点，玩个痛快。She～ed when she got to know he was safe.得知他平安无事，她便放心了。Forget your worries and～. 忘掉烦恼，放松点。Some people can't even～when they are at home. 有些人即使在家也放松不下来。Her heavy features/face～ed into a smile. 她那阴沉的表情/面部表情变得轻松而微笑起来。〖同〗ease up;〖反〗tense;

(5)(使)放宽(不严)(make rules，regulations，discipline or one's control less strict)[I，T+n]：The general～ed greatly in his cruel treatment of the prisoners. 在很大程度上，将军已不再那么残酷地对待俘虏了。The strict army discipline tends to～a bit before Christmas. 圣诞节前严格的军纪往往有点松懈。Discipline is～ed on the last day of school. 学校放假的前一天纪律松懈了。～one's policies/the rules/the procedure 放宽政策/规定/对程序的要求;

→͵rela′xation n 放宽(松);松懈;娱乐(活动);re′laxed adj 不紧张(忧虑)的，轻松的;re′laxing adj 使人无精打彩的