Chevkinite
硅钛酸铈钇矿
🗣️ 情景例句
You got that part right.
你们这一部份猜对了。
I want to welcome you all here for the fourth annual meeting of our Asian sales staff.
欢迎所有来参加我们亚洲推销员第四届年会的代表。
Last week I went to the theatre.
上星期我去看戏。