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英文解釋

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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.

補課的意思是：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.