Ключевые слова: agricultural, agriculture, asian, china, chinese, choi sum, choy sum, choysum, closeup, crop, cultivate, cultivation, farm, farming, field foliage, food, fresh, garden, green, grow, growing, growth, guangdong, healthy, hong kong, hongkong, leaf, leafy, lush, mustard, nature, nutrition, organic, outdoors, petsay, plant, raw, shanghai, spring, vegetable,