let your hair down
US /lɛt jʊər hɛər daʊn/
UK /lɛt jʊər hɛər daʊn/
1.
放鬆, 盡情玩樂
to allow yourself to behave much more freely and enjoyably than usual and relax
:
•
It's good to let your hair down after a long week of work.
辛苦工作一周後，好好放鬆一下是很好的。
•
The party was a great chance for everyone to let their hair down.
派對是大家放鬆一下的好機會。