More than six hundred teams took part in the 2017 Nanjing primaryandsecondaryschool robot competition in May.
今年5月，超过600支队伍参加了2017年南京市中小学机器人比赛。
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It is reported that hundreds of schools in China will use the textbooks for primaryandsecondaryschool students in 2019.
据报道，2019年，中国数百所学校将在中小学生中使用该教材。
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All primaryandsecondaryschool students in China will be banned from bringing mobile phones to school, the Ministry of Education announced in early February.