这些可见的普通物质由质子、中子和电子组成。

These visible, ordinary matters are composed of protons, neutrons and electrons.

youdao

好吧，如果你有很多钱，你甚至可以把原子分成一些亚原子粒子：质子、中子和电子，但即使是这些小磁体，也还是有南北磁极。

Well, with a lot of money, you can cut even the atom into to subatomic particles: protons, neutrons and electrons, but even these little magnets still always have one North and South magnetic pole.

youdao

原子内的一个中子衰变后会产生一个质子、一个电子和一个中微子。

When a neutron inside an atom decays, it produces a proton, an electron, and a neutrino.

youdao