摘要
On January 14,in Clearwater Bay in Sanya City,south China's tropical island province of Hain an,Cai Mingji ng asked,"Can you see the sea?'Cai,a rural teacher from central China's Hubei Provinee,was not talking to somebody with her but to her students back in the class via smartphone.The students in Pengjiagou Primary School in the mountainous area of Danjiangkou City were keen to quiz her about marine life and the ecology of the bay.
