每个班级都有其特点。

Each class had unique characteristics.

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每个班级有三个儿童被诊断出有心理健康问题。

Three children in every classroom have a diagnosable mental health condition.

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我们学生会的娱乐部组织了一次活动，每个班级要为此拍摄一部短片。

The entertainment department of our Student Union organizes an activity in which each class shoots a short movie.

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