nucleus

1. N-COUNT The nucleus of an atom or cell is the central part of it. (原子或细胞) 核

Neutrons and protons are bound together in the nucleus of an atom. 在一个原子的核内，中子和质子聚合在一起。

2. N-COUNT Thenucleusof a group of people or things is the small number of members which form the most important part of the group. 核心

Matt Cummings and Liko Soules-Ono form the nucleus of the team. 马特·卡明斯和莱克·索尔斯-奥诺形成了这个团队的核心。