vt.

1. 解开，拆散
   The baby unraveled its mother's knitting.

   那婴儿将母亲的编织物拆散了。

2. 阐明；弄清；解决
   The experts unraveled a mystery.

   专家们揭开了一个谜。

3. 破坏（计划、安排等）

vi.

1. 散开
2. 被解决

v.

1. undo (twisted, knitted, or woven threads).
   ▸become undone.
2. investigate and solve (a mystery or puzzle).
3. begin to fail or collapse.