ravel

vt.& vi.

使纠缠，变得错综复杂；

vt.

磨损；

过去式：raveledravelled过去分词：raveledravelled现在分词：ravelingravelling第三人称单数：ravels

ravel out解决；解除；解开

1. Bind the edge of the rug so that it won't ravel.
   给地毯镶个边以免开线。
2. I can not ravel this piece of string,it's all in knots.
   这条绳子打了好多结，我解不开。
3. Ravel a bit of the leftover cloth to mend the tear in vour dress.
   拆开一点剩布的线,缝补你的衣服上的撕裂处。
4. We have to ravel the matter out.
   我们必须把事情弄个水落石出。
5. The difficulty will soon ravel out.
   困难很快就会得到解决。
6. Our temporary difficulties will soon ravel out.
   我们的暂时困难将很快得到解决。
7. But we have to ravel out some pivotal problems of the government now.
   可现在看来，大家必须解决一些关键性问题。

Ravel-resistant, self-supporting woven graft
Ravel-resistant, self-supporting woven graft
Ravel-resistant, self-supporting woven vascular graft
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