unlace

1.He sat down and unlaced his boot.

他坐下来，开始解靴子带。

2.He raises his shoe to unlace it, and catches the sight of the slippers.

他翘起只脚来解鞋带，看见了拖鞋。

3.It has a website, but it still has to unlace the knotty problem facing all weeklies trying to manage themselves into an online future — what does a Web-based weekly look like?

商业周刊拥有个网站，但是它仍需要解决当下面难题，同时也是所有周刊杂志所面题，就是将来如何转变成为家网上杂志，家以网站为基础周刊看起来如何？