This is of crucial importance.

这是一件极关重要的事。

Its health is therefore of crucial importance to us all.

因此，它的健康状况对我们来说至关重要。

We have found two issues of crucial importance: location and scale.

我们发现了两个至关重要的问题：地点和规模。

The fourth Lateran Council, in 1215, was of crucial importance.

第四次拉特兰会，在1215年，是至关重要的。

The sixth question is of crucial importance: Is it true or not?

第六个问题是相当重要的：它是真的还是假的？