apple是可数名词,它是苹果的意思，单数形式：an apple,复数形式：three apples。
Apples come in a great many varieties.
苹果的品种繁多。
How much are those apples at the back?
后边那些苹果什么价钱？
These are the last of our apples.
这是我们最后剩下的几个苹果。
He ate the apple, stalk and all.
他把那个苹果吃了个干净，连梗都没剩下。
Cut the apple into quarters.
把苹果切成四块。
Sling me an apple, will you?
扔个苹果给我，好吗？
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