下课铃响了,学生们纷纷走出教室
When the bell rang, the students are out of the classroom
上课铃响了,我得走了
The bell rang, and I have to go
你们每节课有多少分钟
You how many minutes per lesson
他们每节课是 45 分钟
They is 45 minutes per class
你们一天几节课
You a few class a day
我们一天有6 节课
We have six classes a day