I'm lonely only when I am overtired, when I have worked too long without a break, when from the time being I feel empty and need filling up.

只有在我过度劳累的时候，在我长时间不断工作的时侯，在我感到内心空虚，需要充实的时候，我才会感到寂寞。

youdao

In the busy moments of the noontide work I am with the crowd, but on this dark lonely day it is only for thee that I hope.

在中午工作最忙的时候，我和大家在一起，但在这黑暗寂寞的日子，我只企望着你。

youdao

I'm lonely only when I am overtired, when I have worked too long without a break, when for the time being I feel empty and need filling up.

只有在过度劳累时，我才会感到孤独，心也像被掏空了一般。

youdao