A farmer works in a greenhouse at an agricultural garden in Luanzhou City, north China's Hebei Province, March 29, 2020. (Xinhua/Mu Yu)
A farmer packs strawberries in a greenhouse at an agricultural garden in Luanzhou City, north China's Hebei Province, March 29, 2020. (Xinhua/Mu Yu)
A farmer picks strawberries in a greenhouse at an agricultural garden in Luanzhou City, north China's Hebei Province, March 29, 2020. (Xinhua/Mu Yu)
Farmers work in a seedling greenhouse at an agricultural garden in Luanzhou City, north China's Hebei Province, March 29, 2020. (Xinhua/Mu Yu)
