果核的用法和样例：
例句
-
苹果核就是苹果外层吃光后剩下的那一部分。
An apple core is the part of an apple left after the outside has been eaten. -
褓姆叫孩子把果核吐出来。
The nurse tell the child to spit out the stone. -
他吃掉了李子，并扔掉了果核。
He ate the plum, and threw the core away.
