Ferrofluid
铁磁流体
🗣️ 情景例句
Certainly. Hold on, please.
当然可以，请稍等。
It is no honour for an eagle to vanquish a dove.
老鹰胜鸽，不足为荣。
'I told you yesterday and the day before yesterday,' he shouted,
“我昨天和前天都告诉过您了，”他大叫着，