那些因为某些需要得带手机的学生必须取得父母和老师的同意,并且必须在上课期间上交手机。
Those who require their phones for some need must get their parents' and teachers' approval and must hand their phones over during class time.
在上课期间内不要离开学校。
学员在上课期间必须将手提电话及传呼机关掉。
All mobile phone and beeper must be switched off during lesson.
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