Ferrofluid
铁磁流体
🗣️ 情景例句
OK. Finish off by jogging in place.
好 ，结束之前在原地慢跑。
Not only did I forget my train ticket, but I also forgot my passport.
我不仅忘了带火车票，还忘了带护照。
My friend Li Lei likes mooncakes with meat.
我的朋友李雷喜欢放有肉的月饼。