Sign in
Subscribe
Videos
Vocabulary
Dictionary
Pinyin Chart
Tone Pairs
Educators
Chinese
Learn
Spanish
French
German
Italian
Chinese
English
Yabla Chinese
Videos
Vocabulary
Dictionary
Pinyin Chart
Tone Pairs
Educators
Learn
Spanish
French
German
Italian
Chinese
English
Yabla video uses of
氟
这种
zhèzhǒng
功能
gōngnéng
与
yǔ
茶叶
cháyè
中
zhōng
所
suǒ
含
hán
的
de
微量元素
wēiliàngyuánsù
氟
fú
有关
yǒuguān
This kind of function is related to the trace element fluoride contained in tea leaves.
氟
fú
有
yǒu
防龋
fángqǔ
坚
jiān
骨
gǔ
的
de
作用
zuòyòng
Fluorine has tooth decay-preventing and bone-strengthening effects.
所以
suǒyǐ
它
tā
发明
fāmíng
了
le
第一
dìyī
支
zhī
有效
yǒuxiào
防
fáng
蛀
zhù
的
de
含
hán
氟
fú
牙膏
yágāo
So, it created the first fluoride toothpaste effective against cavities.