Ferrisulphas
[机] 硫化亚铁
🗣️ 情景例句
But I am going to make a headpiece of lace.
但我准备做一个蕾丝头饰。
What would you like to do this weekend?
这周末你打算做什么？
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，