Naumannite
硒银矿
🗣️ 情景例句
And give her a teaspoon of the medicine after every meal.
每餐之后给她吃一茶匙的药。
He has a mind to become a revolutionary.
他有当革命家的胸襟。
We want to catch the eight nineteen to London.
我们要乘8点19分的车去伦敦。