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单词 fluoride
释义

fluor.ide
H5flJE7raId, $5flJ-
n [U]
a chemical substance sometimes added to water or TOOTHPASTE (=substance for cleaning teeth) in order to help keep teeth healthy
氟化物,氢氟酸盐
This toothpaste contains fluoride to help protect against tooth decay.
这种牙膏含氟化物,可以抗牙齿腐蚀。

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更新时间:2025/3/14 0:52:40