Smoking vitiates the air.

吸烟会污染空气。

Yet prohibition itself vitiates the efforts of the drug warriors.

但是禁令本身也削弱了药品战士们的成果。

In addition, confusion over evaluation criteria vitiates many evaluation projects.

此外，对评鉴规准的困惑，使许多评鉴计画成效打折。

But excellent as this man is, there is yet a grave imperfection in his cosmos which to a degree vitiates the truth he desires to teach: he leaves the element of beauty out of his formula.

然而，尽管这个人很优秀，但在他的宇宙之中，也依然存有一个严重的缺陷，这多少有损于他渴望教书的道理：他把他信条中美的元素丢掉了。