alum coal
基本释义
明矾煤
实用场景例句
学术讨论
In linguistics, countable nouns are contrasted with uncountable ones.
在语言学中，可数名词与不可数名词形成对比。
数量描述
The countable objects were inventoried carefully before the sale.
可数物品在销售前被仔细清点。
语法教学
She explained that books are countable items in the store.
她解释说书籍是商店中的可数物品。
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