n. a small group of indispensable persons or things
n. the center of an object
n. the central part of the Earth
n. a cylindrical sample of soil or rock obtained with a hollow drill
n. 核心, 果心, 要点
vt. 挖...的核
[计] 内核, 核心网
1. The core of the Earth is very hot.
地球的核心非常热。
2. Learning vocabulary is the core of language study.
学习词汇是语言学习的核心。
3. She believes that honesty is the core value of any relationship.
她认为诚实是任何关系的核心价值。