Pencil, notebook and eraser are all countable nouns.

铅笔，笔记本和橡皮檫都是可数名词。

The main content of today's class is countable nouns.

今天课上讲的主要内容是可数名词。

These data are countable to the laboratory.

这些数据对实验室来说都是可计算的。

Are they countable nouns or uncountable nouns?

它们是可数名词还是不可数名词?。

Countable nouns are nouns that can be counted.

可数名词是指可以计算的名词。

Differentiate between countable and uncountable nouns.

区分可数名词与不可数名词。

The countable atomic and saturated models are also built.

还给出了它的可数原子模型和饱和模型。

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。