Perchromate
n. [化]过铬酸盐
🗣️ 情景例句
This dictionary is more useful than I expected.
这字典比我所预期的更有用。
If it doesn't rain tomorrow, I think I'll go shopping.
如果明天不下雨的话，我打算购物。
lawyers and defendants, marriages and births----
律师和被告、婚姻和生育，