existence的动词为exist

例句

1、

The existence of God is beyond human understanding.

上帝的存在与否是超出人类所能理解的。

2、

She conjectured the existence of a completely new species.

她推测有一个全新物种存在。

3、

We led a poor but happy enough existence as children.

我们儿时的生活虽然贫穷却过得很愉快。