学校建于1990年，有教学班48个，教师280个，学生3200个的翻译：School was built in 1990, 48 teaching classes, teachers, 280 students 3,200 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

School was built in 1990, 48 classes, 280 teachers and students 3200

School was built in 1990, 48 teaching classes, teachers, 280 students 3,200

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Built in 1990, schools are teaching classes 48 280 teachers, students, and a 3200

School was built in 1990, 48 teaching classes, teachers, 280 students 3,200