Perchromate
n. [化]过铬酸盐
🗣️ 情景例句
I will, John.
我会的 ，John。
We're in competition with several other companies for the contract.
我们与另外几家公司逐争取这个合同。
Permission was granted and a policeman accompanied him to a pay phone.
警察同意了，陪他来到一个投币地电话前，