求翻译：上课时要按时到达不能迟到，课堂上要保持安静不能吵闹，在课堂上不能听音乐盒玩游戏要认真听讲，见到老师要问好，不能没有礼貌，不许在教室里吃东西，可以在食堂里吃。是什么意思？

Arrive at class can not be late to class to keep quiet not noisy in the classroom can not listen to the music box to play the game to listen carefully, to see the teacher to talk to, and not rude, not allowed to eat in the classroom, you can in the cafeteria eat.

At school, can't be late to arrive on time, the classroom, not to keep quiet in the classroom, listening to music is not playing the game you want to seriously listen to the teachers, see, and to say hello, they are not allowed to have polite to eat in the classroom, you can eat in a cafeteria.

Attends class when must arrive on time cannot be late, in the classroom must maintain peacefully cannot be noisy, cannot listen to the musical box in the classroom to play the game to have to listen earnestly, saw teacher wants to give regards, cannot not have politeness, does not have to eat the th

To arrive when not to be late for class, to keep quiet no noise in class, cannot hear music box playing games in the classroom listening intently, seeing the teacher to say hello, not rude, not allowed to eat in the classroom, you can eat in the canteen.

正在翻译，请等待...