The film makes its points with cogency and force.

该影片强有力地阐明了主旨。

Violence is more cogency than me, I think.

我想武力比我更有说服力。

Still. the underlying reasons for it have some cogency.

欧盟委员会建议的背后还有一些深层次的原因。

It must reach a certain level of cogency and seriousness.

其必须到达到一定程度的说服力和严肃性。

There is the problem with the very cogency of the idea itself.

这个概念本身的中肯性，也存在着问题。