Pyromucylanhydrin
焦粘酐
🗣️ 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。
Advanced technology has enriched China.
先进的工业技术使中国富裕起来。
Were you able to quote on all the items we need?
我们需要的每个项目你都能报价吗。