Students watch a robot show during a science and technology festival held at Youfangjie Primary School in Chengguan town in Baokang county, Central China’s Hubei province, April 19, 2018. [Photo/Xinhua]
A teacher explains how sci-tech gadgets work to students during a science and technology festival held at Youfangjie Primary School in Chengguan town in Baokang county, Central China’s Hubei province, April 19, 2018. [Photo/Xinhua]
