求翻译：首先，在上学期间，尤其是上课的时候，不要使用手机，这样会使学习分心。影响精力，造成不必要的负面影响。其次，我们使用手机是为了方便沟通，凡是无关紧要的事情，我觉得不应该使用手机。学生就应该专心学习。是什么意思？

First of all, in school, particularly of the class, do not use a mobile phone, this will make learning a distraction. Impact energy, cause undue negative impact. Second, we use cell phones in order to facilitate communication, all irrelevant things, I think we should not use mobile phones. Students should concentrate on their studies.