Some people exist on very little money and still find happiness.

有些人靠很少的钱存在，但仍然找到幸福。

The children seem to exist on a diet of burgers and chips.

孩子们似乎以汉堡和薯条为主食。

Asas they exist, must exist on financial speculation.

只要金融存在, 金融投机就必然存在.

Does life exist on Mars?

火星上存在着生命吗？

Pandas exist on a bamboo diet.

而熊猫主要是吃竹子的。

Does water exist on the moon?

月球上有水吗？

They cannot exist on such low wages.

靠这样低的工资他们无法生活。

Live on. . . They exist on very little food.

他们靠极少的食物生存。

He could barely exist on such a low wage.

拿着这样微薄的收入,他只能勉强糊口.

In-memory modules and do not exist on disk.

此类模块称为“内存中的模块”，它们不存在于磁盘上。