Many wait months for wages; some never see them.
很多几个月领不到工资，还有从来看不到他们。
Sometimes we see some strangers so many times that we know their faces well, but we never even say hello to them.
有时我们见到一些陌生人太多次，所以我们很熟悉他们的脸，但我们甚至从来没有跟他们打招呼。
In some cases, they'll never see the machines because they are managing them from the other side of the world.
在某些情况下，他们从来都没见过这些物理机器，因为他们是在世界的另一端管理它们。
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