He wished to struggle on to the end.

他决定干到底。

You and your brother have come at me with both barrels.

和是下定决心跟我干到底。

So here we are to see things through.

我们也只好硬着头皮干到底。

I'm the guy who'll do whatever it takes to stick it to them.

我会不惜一切代价跟他们干到底。