Metamorphite
变质岩
🗣️ 情景例句
Yes. At our company, quality control si very important.
是的。在我们公司，质量管理非常重要。
This is a TV set.
这是一台电视机。
The winning car reached a speed of forty miles an hour -- much faster than any of its rivals.
获胜的那辆车达到了时速40英里--远远超过任何对手。