
A farmer picks vine tea at a base in Zhangjiajie, central China's Hunan Province, Sept. 8, 2017. Vine tea in Zhangjiajie has entered its harvest season. (Xinhua/Wu Yongbing)

A farmer picks vine tea at a base in Zhangjiajie, central China's Hunan Province, Sept. 8, 2017. Vine tea in Zhangjiajie has entered its harvest season. (Xinhua/Wu Yongbing)