First of all, walking across hot coals

首先 从灼热的煤炭上走过

Coal's lightweight carbon structure

煤炭的轻量化碳结构

I reckon he'd say something like,

我猜他会说

Even though you're bound to be a little bit pissed off,

虽然你肯定不太高兴 但是作为战士

That's all.

仅此而已

He has a wife and children back home, is that correct?

他家中有妻小 对吧

In fact, the claim now is

实际上 我们现在声明

And in fact, this potential energy

实际上 这个保守力产生的势能

is just big enough to overcome the resistance to motion.

而这个力正好能抵消阻力

Of course the force that resists motion is going to be different

当然阻碍运动的力可以有很多种

even the strong force, weak force,

甚至是强作用力 弱作用力

happens to be conservative.

恰好都是保守力