学生每天在校时间长达9个小时。的翻译：Students at the school for 9 hours a day. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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Students at the school for 9 hours a day.

The student long reaches every day in the school time for 9 hours.

Students in the school every day for up to 9 hours time.

Students at the school for 9 hours a day.