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.
有几天在上课期间，他忽然一下子记不起一些字句，茫然地露出愧色。
Some days in the course of our lessons he would suddenly be at a loss for some word and look vacant and ashamed.
有几天在上课期间，他忽然一下子记不起一些字句，茫然地露出愧色。
Some days in the course of our lessons he would suddenly be at a loss for some word and look vacant and ashamed.
应用推荐