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英文解释

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Let the students in China have some classes on weekends or vacations. Sometimes their parents need to hand in some money. Usually, they have to go to school. If they don't do that, their parents and teachers will criticize them.

补课的意思是：Let the students in China have some classes on weekends or vacations. Sometimes their parents need to hand in some money. Usually, they have to go to school. If they don't do that, their parents and teachers will criticize them.