Ferrofluid
铁磁流体
🗣️ 情景例句
Well, here we are.
好了 ，终于到啦。
Did you criticize him for his mistakes?
你因为犯错误的事批评他了吗？
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。