The bandage gradually unwound and fell off.

绷带逐渐松开脱落了。

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。

The Princess unwound her long braid, pulled out a single hair and handed it to the littlest knight.

公主解开了长长的辫子，拔下一根头发交给那位最小个的骑士。

He unwound his scarf from his neck.

他从脖子上解下围巾。

The thread unwound a little more.

线又松开了一些。