n.核化；晶内偏析；取岩芯

动词core的现在分词.

The earth has a core and a mantle around it. 地球的中心是地核，地核的周围是地幔。

He is American to the core. 他是个地地道道的美国人。

He ate the plum, and threw the core away. 他吃掉了李子，并扔掉了果核。

The core of our appeal is freedom of speech. 我们的要求的核心是言论自由。