Level 5 · word 6,326 of 20,000

nucleus

/ˈnuːkliəs/ American
Picture: nucleus
  • n. 核心, 中心
Definition
  • n. the central part of something that other things develop around
Example
The nucleus of the cell contains most of its genetic material.
细胞核中含有细胞大部分的遗传物质。