英语翻译1.在50名学生中,就有30名来自农村.2.父母和老师一样都在尽量帮助他改掉坏习惯.3.科学家们估计对淡水的需求

Of the 50 students, 30 are from the countryside.Both his parents and teachers are trying to help him get rid of his bad habits.Scientists suppose that there is an increasing need of fresh water.
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