葱叶表面经常会有蓝色
以前吃是为了健康, 现在不知道是为了啥https://pic.app.nhzj.com/forum/20220911122935front2_1_50758_FiT6tOo21ih9Oe3XOtCjWbLKRvJW.mp4?553
https://www.douyin.com/search/%E7%A1%AB%E9%85%B8%E9%93%9C%E8%91%B1?aid=32d66a64-a1ff-4b1a-8338-b5f62ab564d1&enter_from=recommend&focus_method=&gid=6933747085233638659&modal_id=6917516431965900046&source=normal_search 硫酸铜 小小超市的葱就是有蓝色的
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