have a charge的意思|示意

It will still have a charge even if I forget to plug it in overnight, for example.

就算我一个晚上忘了充电，第二天还是可以用。

He shot alpha particles which have a charge of plus two.

他入射的阿尔法粒子带有两个正电荷。

So, let's say we have an atomic number of 3, 3 that means we have 3 electrons, so we better hope to get our neutral atom that we have a charge of plus 3in the nucleus.

这也是很合理的，因为Z就是原子序数，假设原子序数是，那就有3个电子，那我们就希望,性原子有个带3个正电荷的原子核。