Primary and secondary
关于课堂提问的思考 --中国期刊网 关键词】主次;教学;兴趣;提问;课堂 [gap=417]Key words】Primary and secondary; Teaching; Interest; Questions; Classroom
distinguishes between the primary and the secondary ; use the one-two punch ; Put first things first
primary-secondary dose monitoring system
girder and beam connection
主次是一个汉语词汇,读音是zhǔ cì,意思是主要与次要;主语所处的位次。出自《新观察》。