Ferroferrite
纯铁, 纯铁体
🗣️ 情景例句
She has not indicated how she proposes to react.
她未表示打算做何回应。
The days are getting hotter.
日子正在变得更热。
However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.
但是，还有一种更加隐蔽有害的污染，它专门影响城镇地区，侵袭我们的日常生活，那就是噪音。