And at the same time, its potential energy decreases, keeping its total energy the same.

同时，它的势能在减少， 这使总能量保持不变。

So, we’ve found the potential energy decrease of a single point charge in a uniform electric field.

因此，我们发现了均匀电场中单点电荷的势能降低。

So, we've found the potential energy decrease of a single point charge in a uniform electric field.

所以我们发现电荷的势能降低了 均匀电场中的一个点。

The negative comes from the fact that if you let the force push you along your potential energy decreases, while if you fight in opposition to the force your potential energy increases.

你的势能就会降低而当你反抗该力而行 你的势能会增加。