Subject + 放松 + (一下)
放松 (fàngsōng) is a verb meaning "to relax" or "to loosen up." It describes the act of easing tension, either physically or mentally. It can be used on its own or followed by 一下 to suggest a brief, casual relaxation.
周末的时候我喜欢在家放松一下。
Zhōumò de shíhòu wǒ xǐhuān zài jiā fàngsōng yíxià.
On weekends I like to relax at home.
你工作太累了,应该放松放松。
Nǐ gōngzuò tài lèi le, yīnggāi fàngsōng fàngsōng.
You're too tired from work; you should relax a bit.
听音乐能帮助我放松心情。
Tīng yīnyuè néng bāngzhù wǒ fàngsōng xīnqíng.
Listening to music helps me relax.