Erdmannite
复硅锆钡矿
🗣️ 情景例句
which we made clear at the beginning of the negotiation.
关于这一点，我们早在开始谈判时期就讲明了。
No man knows when he shall die, although he knows he must die.
纵然知其难免一死，人却难料何时身亡。
Thanks for the party last Sunday. I enjoyed it very much.
感谢你上个星期天的聚会。我非常快乐。