8个班级英语怎么说

8 个班级英语说作 "eight classes".
"Eight" 来自于古英语 "eahta", "classes" 来英语 "clæsse" 中，来自拉丁语 "classis" 意为 "一类人" 或 "一群人"。
例句：
The school has eight classes of students.
(学校有八个班的学生)
I have eight classes today.
(我今天有八节课)
We are divided into eight classes for the tournament.
(我们被分成八组进行比赛)