Dixenite
黑硅砷錳礦
??? 情景例句
Yes. At our company, quality control si very important.
是的。在我們公司，質量管理非常重要。
I asked him to come with me , but he wouldn't.
我請他和我一起來，但是他不肯。
Why don't we go to the office now?
為何我們現在不去辦公室呢？