The bell rings after class
下课───class is over;铃───bell
My last class is over at 3:30.───我最后一节课是在三点半结束。
class is over. You can go home now.───下课了，你们可以回家了。
Class is over. Let's play balls.───下课咯，去玩球吧。
he said: "the class is over! " rubbing his eyes, the class leader immediately responded with a shout, "stand up! "───“起来，下课下！”，结果班长揉揉眼睛喊：“起立！”
Students say "good-bye" to the teacher when the teacher announces the class is over. Students get out of the classroom in the good order.───老师宣布下课时，师生互相喊“再见”，学生按顺序走出教室。
Class is over, sometimes rest at hand naturally on those keys slip, unexpectedly also spreads out a line of pleasant melody.───下课休息，有黍暄堰自但是然地在琴键上滑过，竟也流泻出一行悦耳的旋律。
After the two-day class is over, Hawley offers additional runs for an extra charge.
Before the class is over, the teacher usually allows time for his remarks to seep through.