Fluoric
a. 氟石的, 从氟石获得的, 氟素性的
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
All truths are not to be told.
真理并不都能说得清。
A recent survey of the effects of noise revealed (surprisingly?) that dogs barking incessantly in the night rated the highest form of noise pollution on a scale ranging from 1 to 7.
最近一个有关噪音的作用的调查（令人吃惊地）指出，夜间连续不断的狗叫声，在一个从1级至7级刻度表上应列为最严重的噪间污染。