八個的用法和樣例：
例句
-
正方形有四個角兒;立方體有八個角兒。
A square has four corners; a cube has eight. -
我要是不睡上八個小時就無法工作。
I'm hardly functional if I don't get eight hours' sleep! -
教室里有八個學生。
There are eight students in the classroom. -
他的八個兒子繼承了他的大部分遺產。
His eight sons largely inherited his fortune. -
這一段長城有八個垛口。
There are eight forts in this section of the Great Wall.
