- 问题详情:Askateachertonamethemostannoyinginventionofrecentyearsandtheywilloftenmentionthemobilephone.Disturbedbytheproblemstheycreate,manyheadteachershaveorderedthatpupilsshouldkeeptheirphonesswitchedoffatschool.Othershavetoldpupilstoleavethemathome.H...
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