Ferrofluids
(ferrofluid 的复数) 铁磁流体
🗣️ 情景例句
Good morning, sir. May I help you?
早安，先生。能为您服务吗？
In water you may see your own face; in wine, the heart of another.
水中可见自己的脸，酒中可见别人的心。
Among these I would list string and brown paper, kept by thrifty people when a parcel has been opened, to save buying these two requisites.
这些东西中我想举出线绳和包装纸为例。节俭的人们打开包裹后便把这两样必备的东西收藏起来。省得日后去买。