1. Used before an uncountable noun (abstract, material, proper) to refer to a countable meaning of noun.
用在不可数名词（抽象、物质、专有）前，使该名词作为可数名词的用法。但当不可数名词前有表示数量的复数名词时，谓语动词用复数形式。
2. Notice that this noun can be countable if it is used to mean something gained.
这家糖厂是公司最近兼并的厂家之一。
3. It is used before a countable noun which starts with a vowel.
它位于以一个元音开头的可数名词之前。
\u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
4. When the material said the substance of the types of nouns, the noun countable.
当物质名词表示该物质的种类时，名词可数。
5. The word " person " is a countable noun.
person这个词是个可数名词。
countable noun在线翻译
6. The word " weight " is called a countable noun in these examples.
在这些例子中，单词weight（秤砣）叫作可数名词。
7. Here, " work of art " is a special countable noun.
这幅画的确是一件艺术作品。
countable noun
8. The word " person " is a countable noun.
person这个词是个可数名词。
9. T: Sometimes, the same noun can be countable and uncountable. But it is often with a change of meaning.
有些名词具有可数与不可数的用法，通常意思上会有所改变。