n.核；核心；細(xì)胞核；原子核

A nucleus can have only one Y-chromosome. 一個(gè)核可以僅有一個(gè)Y染色體。

These council will form the nucleus of a future regime. 這些委員會(huì)將成為一個(gè)未來政權(quán)的核心。

These paintings will form the nucleus of a new collection. 這些油畫將是新收藏品的核心。

The most important part of the cell is the nucleus. 細(xì)胞中最重要的部分是細(xì)胞核。

The outermost electron is shielded from the nucleus. 原子核對(duì)最外層電子的作用受到屏蔽。