Perchromate
n. [化]过铬酸盐
🗣️ 情景例句
Oh yes.
你好。
We would be glad to start business with you.
我们很高兴能与贵公司建立贸易往来。
When I was a teenager, I felt that I was just young and uncertain --
我十几岁时，总感到自己年轻，有些事拿不准 --