Bilixanthin
[化] 胆汁黄质
🗣️ 情景例句
Pretty good.
挺好的。
A burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。