Translation of "Utmost" in Chinese

This is a matter of the utmost importance.

这件事至关重要。

Guys, I'll do my utmost to back you up. We'll make this event a success no matter what!

大伙儿，我会全力跟进的。一定会把这事办成的。

We must make the utmost effort to reduce the use of plastic packaging, and also to recycle all waste plastic.

我们应该尽我们最大的努力减少塑料包装的使用，并回收所有的塑料废物。

If we don't make the utmost effort to protect the rainforests, many of the rare species in them will become extinct.

如果我们不做更多的努力去保护雨林，很多其中的稀有物种将会灭绝。