无法解决

Even the professor couldn't clarify the knotty point.

甚至教授也法决这个棘手问题。

Unless controlled the quality of musical file from fountainhead, otherwise inextricability.

除非从头上控制了音乐文件的质量，否则法决。

Simple example, in regular procedure inextricability, breaks free from the convention, seeks the method.

最简单的例，在常法法决的时候，打破常规，寻求方法。