• 1. countable: 能算的 | 可数名词
• 2. first-countable space: 第一可数空间
• 3. axiom of countable choice: 可数选择公理

更多释义

• 1.Are they countable nouns or uncountable nouns?
  它们是可数名词还是不可数名词?。
  dict.yoduao.com
• 2.Differentiate between countable and uncountable nouns.
  区分可数名词与不可数名词。
  dict.yoduao.com
• 3.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。
  dict.yoduao.com

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