Fluoridation
[醫(yī)] 氟化
?? 牛津釋義
fluoridation
n[U].
??? 情景例句
The little boy held his mother's hand firmly when crossing the street.
那小男孩過馬路時緊抓著母親的手。
I will be flying to Canada at this time tomorrow.
我將在明天這個時候飛到加拿大。
Dust the dressing table.
撣掉梳妝臺上的灰塵。