1·A distinction should be made between the primary and secondary tasks.
要区别主要的和次要的任务。
—— 《新英汉大辞典》
2·The government provides free education at both primary and secondary school levels and provides some financial assistance for private schools.
政府为小学和中学都提供免费教育，并为私立学校提供一定的经济援助。
3·Street raised $10 million during his primary and general election.
斯特里特在他的初选和大选中筹集了1千万美元。
—— 《柯林斯英汉双解大词典》
4·Historians use a wide range of primary and secondary sources for their research.
历史学家在研究中使用大量的原始资料和二手资料。
—— 《牛津词典》
5·Can we just backtrack a little bit and look at your primary and secondary education?
我们能否稍微回顾一下刚刚提及的你的中小学教育背景？
—— 《柯林斯英汉双解大词典》
6·Primary and middle schools should provide students with hardworking spirit courses every week.
小学和中学应该每周为学生提供关于勤奋学习的课程。
7·It's already common practice worldwide to limit students' use of mobile phones in primary and secondary schools.
限制中小学生使用手机已经是全世界的普遍做法。
8·Primary and middle schools should provide students with hard-working spirit classes every week, according to the guideline.
该意见指出，中小学应每周为学生开设“学习勤奋精神课程”。
9·More than six hundred teams took part in the 2017 Nanjing primary and secondary school 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。
10·The government will take action to solve the problem of heavy extracurricular burdens on primary and middle school students.
政府将采取行动解决中小学生课外负担重的问题。