Should you be able to buy a product that's sustainable sitting next to one that isn't, or should all the products on the shelf be sustainable?
当一件可持续的产品紧挨着另一件不可持续的产品， 你是否能自觉选择去购买那件可持续的产品？ 或者所有架上的产品都应该是可持续的产品？