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单词
fluoride
释义
fluoride
fluor
ide
/
ˈflɔraɪd
/
noun
[uncountable]
Etymology
ETYMOLOGY
fluoride
Origin:
1800-1900
fluorine
science
,
chemistry
a chemical that helps to protect teeth against decay
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rabbit
rabbit hutch
rabbit punch
rabbit warren
rabble
rabble-rouser
rabble-rousing
Rabelais, François
rabid
rabies
Rabin, Itzhak
raccoon
race
race car
racecourse
racehorse
racer
race relations
race riot
racetrack
Rachmaninoff, Sergei
racial
racially
racily
Racine, Jean
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更新时间:2025/9/15 7:20:24