unwind

1. V-I When you unwind, you relax after you have done something that makes you tense or tired. 放松

It helps them to unwind after a busy day at work. 这有助于他们在一天繁忙的工作后放松一下。

2. V-T/V-I If you unwind a length of something that is wrapped around something else or around itself, you loosen it and make it straight. You can also say that it unwinds. 解开

One of them unwound a length of rope from around his waist. 他们中的一个人解开绕在他腰间的一条绳子。