Read Edit View history 氟化物 fúhuàwù fluoride Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 氟化物 · fúhuàwù · fluoride 2026/03/04 氟化物 fúhuàwù fluoride fluoride 这种牙膏含有氟化物，能有效预防龋齿。 noun created sense Mar 4, 2026, 02:25 AM