It's our job to take care of them for our whole lives.

It's our job to take care of them for our whole lives.
It's our job to take care of them for our whole lives.

It's our job to take care of them for our whole lives.
我们的工作就是用一生时间来照顾他们

为你解答。
It's our job to take care of them for our whole lives.
译：照顾他们一辈子是我们的职责。

用我们的一生去照顾他们这是我们的责任

用我们的一生来照顾它们是我们的责任

照顾他们一生一世，是我们的工作/职责/义务。