Aerial photo taken on April 28, 2020 shows growers picking tea leaves at a tea garden in Shengzi Village of Hefeng County, Enshi Tujia and Miao Autonomous Prefecture, central China's Hubei Province. (Photo by Yang Shunpi/Xinhua)

Aerial photo taken on April 28, 2020 shows growers picking tea leaves at a tea garden in Shengzi Village of Hefeng County, Enshi Tujia and Miao Autonomous Prefecture, central China's Hubei Province. (Photo by Yang Shunpi/Xinhua)

Aerial photo taken on April 28, 2020 shows growers picking tea leaves at a tea garden in Shengzi Village of Hefeng County, Enshi Tujia and Miao Autonomous Prefecture, central China's Hubei Province. (Photo by Yang Shunpi/Xinhua)

Aerial photo taken on April 28, 2020 shows growers picking tea leaves at a tea garden in Shengzi Village of Hefeng County, Enshi Tujia and Miao Autonomous Prefecture, central China's Hubei Province. (Photo by Yang Shunpi/Xinhua)