累大致分两种，一种身体累，一种心累。不管哪种累，我们第一时间想到的，就是放松一下，给自己一点休息时间…那么，“放松一下”用英语该怎么说？
1）unwind
例句： I’m beat. We need to unwind. Let’s get a drink.
我累死了，得好好放松下。我们出去喝一杯吧。
Wind 有上紧钟表的发条的意思，那么unwind也就是“松开、解开”，用在这里就是“放松”的意思。
2）mellow out
You need to mellow out a bit. Don’t get yourself so overworked.
你得好好歇口气啦。别工作得太累了。
3）let your hair down
Vincent’s been feeling so stressed these months, but he can’t let his hair down until the end of March.
Vincent这几个月在重压之下疲惫不堪，可是三月底前他都不能松口气。
这个句子源于“女人”在工作和社交场合之外放下盘起的头发，不在拘束，自由自在，后来用于表示“放松、松懈下来”。当然也可以用于男性，虽然我现在是光头。
4）Put your feet up
Vincent worked evenings preparing the next day’s presentation. His colleagues came over to his cubicle asking him to go get some late night snack:
“Hey, don’t be so committed, u need to put your feet up a bit. Let’s go get a bite”。
“Who’s paying？ You said you would get it this time”
“Oh, boy. I forgot to bring my wallet in the morning”
“Look into my eyes and say that again”
Vincent那晚加班准备第二天的简报，他的同事走到他的位置上，叫他出去吃点夜宵.
“诶，别这么卖力，做劳模又不给奖金，歇一会儿。出去吃点东西”
“谁请客呀？你说过这次你请的“
“哎呀！我早上忘带钱包了！“
“看着我的眼睛，再说一遍你没带钱包”
5）Chill out
When I’ve got a lot on my mind, I prefer to chill out a bit with a coffee with friends.
当我心事很多的时候，我喜欢和朋友们喝杯咖啡放松下。
He chooses to chill out in his beach house.
他选择在自己的海滨别墅里放松神经。
6）R&R
(=relax/rest and recreation)
Hey. I’m new here. Do you know where I can get some R&R after work?
嘿。我是新来的。你知道这边下班后有什么休闲的场所吗？
７）loosen up
Vincent cracked up some sick and silly jokes in the class, to get his students loosen up a bit. It turned out that, it literally sicked a girl out.
Vincent为了让舒缓下课堂气氛，讲了几个又恶又傻的笑话。结果一个女生真的被恶到了。
8）Kick back
I was working my ass off when my boss kicked back in the pub.
我玩命地工作的时候我老板竟然在酒馆里悠哉游哉。
On the weekend, I can kick back and relax, but I dread going back to work when the weekend is over.
周末的时候我可以停止干活好好放松下，可是一想到周一要上班我就万念俱灰/很害怕。
When I want to kick back and relax, I usually flip on the TV and see what’s on.
我想放松下神经的时候，通常会打开电视机看看有啥好节目。
