And it is going through time that seems to be also

穿越时间长河似乎也是
the only real purpose of each of the cells in our bodies.

我们体内每个细胞的唯一真正目的
To achieve that aim, the mass of the cells

为实现这一目标
that make up earthworms and human beings has only two solutions.

构成蚯蚓以及人体的大量细胞只有两个选择
Be immortal... or to reproduce.

永生抑或繁衍
If its habitat is not sufficiently favorable or nurturing...

如果生存环境不利于繁衍
The cell will choose immortality.

细胞会选择永生
In other words, self-sufficiency and self-management.

即自给自足和自我管理
On the other hand, if the habitat is favorable...

反之如果生存环境允许
they will choose to reproduce.

它们将选择繁衍
That way, when they die,

这样细胞死亡时
they hand down essential information and knowledge

会将必须的信息和知识传递给下一代