noun 下载 🔗分享 核子,质子或中子。 One of the subatomic particles of the atomic nucleus, i.e. a proton or a neutron. Examples : "The atomic nucleus is made of nucleons: protons and neutrons bound together. " 原子核由核子组成,也就是质子和中子结合在一起。 physics part element science structure mass 与AI对话词汇游戏阅读练习