Farmers pick tea leaves at a tea garden in Xinglong township of Southwest China’s Chongqing municipality, April 4, 2018. [Photo/Xinhua]

Farmers pick tea leaves at a tea garden in Huangshan city, East China’s Anhui province, April 4, 2018.[Photo/Xinhua]

Farmers pick tea leaves at a tea garden in Huaguoyuan village of Zigui county, Central China’s Hubei province, April 4, 2018. [Photo/Xinhua]

Farmers pick tea leaves at a tea garden in Laozhaixi village of Xuan’en county, Central China’s Hubei province, April 4, 2018. [Photo/Xinhua]