Read Edit View history 氟 fú fluorine Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 氟 · fú · fluorine 2026/03/04 氟 fú fluorine fluorine (chemistry) 牙膏里通常含有氟,可以预防龋齿。 noun created sense Mar 4, 2026, 02:25 AM