Are they countable nouns or uncountable nouns?

它们是可数名词还是不可数名词?。

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Nouns such as book, pen, apple and toy are countable nouns.

像书、笔、苹果和玩具这类名词，称其为可数名词。

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SOME - can be singular with uncountable nouns or plural with countable nouns.

和不可数名词一起用时可以是单数，和可数名词一起用时可以是复数。

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