有天，在莫罗斯修女的数学课上，学生情绪低落。
One day the students in Sister Mroslas's math class were feeling down.
反之，学生情绪低落，态度消极，被动学习，教学效果较差。
Otherwise they are in low spirit, inactive and take negative attitude towards learning, which will result in poor effects.
反之，学生情绪低落，态度消极，被动学习，教学效果较差。
Otherwise they are in low spirit, inactive and take negative attitude towards learning, which will result in poor effects.
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