薯蓣属植物的可食用的块根，生长在热带地区，全世界都把它作为食物。
Edible tuberous root of various yam plants of the genus dioscorea grown in the tropics world-wide for food.
欧洲亚洲和北美的风铃草，有蓝色的花和可食用的块根，叶子可作生菜。
Bellflower of Europe and Asia and north Africa having bluish flowers and an edible tuberous root used with the leaves in salad.
甘薯蔓生植物的可食用的块根，广泛生长在美国的温暖地区。
Edible tuberous root of the sweet potato vine grown widely in warm regions of the United States.
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