人人都在说的“松弛感”，到底是个啥？

意为“坐下来放松一下”，通常指在劳累或忙碌的一天之后放松。

Come on in, have a seat, and take a load off! 

进来吧，坐下来，放松一下!

▌calm and collected

Calm和collected单独使用时都有“镇静的”的含义，两个词一起使用即表示“沉着冷静的，泰然自若的”。

近义表达：(as) cool/calm/chill as a cucumber

She always stays calm and collected in a crisis. 

她在危急关头总是冷静镇定，处之泰然。

She walked in as cool as a cucumber, as if nothing had happened. 

她泰然自若地走进来，好像什么事也没发生过。

▌chill out

Chill作动词时意为“使冰冷；放松”，chill out表示“放松；冷静”。

They sometimes meet up to chill out and watch a movie. 

他们有时候会聚在一起看电影放松一下。

Chill out, Dad. The train doesn’t leave for another hour! 

别紧张，爸爸，火车还有一小时才开呢！

▌kick back

意为“放松，休息”。

With such responsibility on his shoulders during the week, where does he go to kick back on his day off? 

在一周的工作中他肩负着这样的重任，休息日他会去哪里放松一下呢？

▌let one’s hair down

字面意思为“把头发放下来”，可引申为“放松一下，尽情享受”。

It’s about time you let your hair down and had some fun! 

是时候放松一下，找点乐子了！

▌go with the flow

Flow作名词时意为“流，流动”，go with the flow表示“随大流，顺其自然”。

There’s nothing I can do about the problem, so I might as well go with the flow. 

对于这个问题我无能为力，倒不如就顺其自然吧。