求翻译：所以有一天，他准备画苹果，他问爸爸画几个苹果好，爸爸说有几个就花几个，儿子听了看了看桌子上的苹果，一共有三个，他又说了，画三个太难了，于是他就吃起苹果来想少画几个，吃到就剩最后一个他才开始画，画好了，爸爸过来看，结果桌子上就剩了一个苹果是什么意思？

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