nucleus

例句：

1. The colorless, liquid component of the cell nucleus.
   細胞核液細胞核中無色的液體成分
2. The nutritive tissue that is derived from the nucleus and surrounds the embryo of the seed.
   外胚乳包在種子胚芽外，產生於細胞核的營養性組織
3. These 1000 books will form the nucleus of the new school library.
   這一千本書將構成學校新圖書館藏書的基礎。

英文解釋：

名詞 nucleus:

1. a part of the cell containing DNA and RNA and responsible for growth and reproduction
   同義詞：cell nucleus, karyon
2. the positively charged dense center of an atom
3. a small group of indispensable persons or things
   同義詞：core, core group
4. (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
5. any histologically identifiable mass of neural cell bodies in the brain or spinal cord

詞型變化：