在我国保险法中，保险合同的无效制度不很完善。

The nullification system of insurance contract is not quite perfect in the insurance law of our country.

youdao

时序线路的设计方法迄今仍不很完善，而随机型逻辑线路的设计就研究得更少。

So far, there are no perfect methods for designing sequential circuit, while researches on designing stochastic circuit are even fewer.

youdao

If we had perfect financial markets-- and this is intuitive-- and I don't know how obvious this is, it's obvious to me, but it's an intuitive point of great importance-- nobody would suffer alone.

如果我们有完善的金融市场-,这就很直观-,我不知道这有多直观，至少我觉得显而易见，这是一个很重要的观点-,也就是，没有人会独自承担风险。

耶鲁公开课 - 金融市场课程节选