Perlit
波利特铸铁, 珠光体铸铁
🗣️ 情景例句
Robbie, I want you to meet
Robbie，我要你见过
Apothecaries would not sugar their pills unless they were bitter.
好药不苦不会加糖衣。
Look!Here it is!
瞧，就是这件。