跟他争论简直是浪费时间。

It's a waste of time trying to argue with him.

他只觉得无精打采，实在不想争论了。

He was feeling too limp to argue.

她太累了，不想再就这一点争论了。

[with obj.]she was too tired to argue the point.

我没有闲工夫与你争论。

I have no time to argue with you.

我不和你争论，我认为你有失公允。

I won’t argue with you, but I think you’re being unfair.