Nucleus
01
细胞核, 核
(biology) the part of a cell that contains most of the genetic information
例子
The nucleus of a cell contains genetic material in the form of DNA, which regulates cellular activities.
细胞的核含有DNA形式的遗传物质，调节细胞活动。
The nucleus is surrounded by a double membrane called the nuclear envelope, which controls the passage of materials into and out of the nucleus.
细胞核被一层称为核膜的双层膜包围，控制物质进出细胞核。
02
核心, 中心
a central or most important group within a larger organization, often responsible for leadership or key decisions
例子
The nucleus of the team consisted of senior engineers who led the development process.
团队的核心由领导开发过程的高级工程师组成。
The political nucleus of the movement pushed for major reforms in the education system.
该运动的政治核心推动了教育系统的重大改革。
03
the dense, positively charged core of an atom, made up of protons and neutrons and containing most of the atom's mass
例子
The nucleus contains nearly all the mass of an atom.
Scientists studied how electrons orbit the atomic nucleus.
04
a distinct cluster of nerve cells within the brain or spinal cord that performs a specific function
例子
The hypothalamic nucleus regulates hunger and body temperature.
Damage to the caudate nucleus can affect movement control.
05
the dense central region of the eye's lens, surrounded by the softer cortex
例子
The lens nucleus becomes cloudy with age, leading to cataracts.
The surgeon carefully removed the hardened nucleus during the procedure.
06
核, 核心
the central core of a comet, which is composed of ice, dust, and rocky materials
例子
The nucleus of Comet Hale-Bopp is believed to be several kilometers in diameter.
据信，海尔-波普彗星的核直径有几公里。
The nucleus of a comet contains volatile substances that vaporize when the comet approaches the Sun, creating its characteristic tail.
彗星的核含有挥发性物质，当彗星接近太阳时会蒸发，形成其特有的尾巴。
07
the central sound unit of a syllable, usually formed by a vowel or vowel-like element, around which other sounds cluster
例子
In the word " cat, " the vowel /æ/ serves as the syllable 's nucleus.
Every syllable must have a nucleus to be pronounceable.
