there will be billions of them.就会产生几十亿后代

billions of亿万

He claimed to have seen billions of butterflies.

他号称见过无数只蝴蝶。

The night sky is now gorgeous with billions of stars.

星斗万千，夜空璀璨。

It's game over.你就玩完了

game over游戏结束； 终场

Game over, but something of me is just start.

结束了,但是对于我,一些东西才刚开始。

They actually make us more vulnerable to disease.实际它们上会使我们更易受到疾病侵害

vulnerable to易受 ... 的攻击

Young birds are very vulnerable to predators.

幼小的鸟易受食肉动物伤害。

The potato is vulnerable to several pests.

马铃薯易受几种害虫的侵害。