convoluted

该主张错综复杂，难以理解。

The claim was ___convoluted, hard to follow.

这条河流的河道非常蜿蜒曲折，形成了许多复杂的回弯。

The river's ___convoluted course created many intricate bends.

这个法律文件的措辞非常复杂，很难理解。

The language in this legal document is so ___convoluted that it's hard to understand.