Knopite
铈钙钛矿(钛酸钙矿夹杂氧化铯及氧化铁)
🗣️ 情景例句
Hi. How was lunch?
嗨 。午餐怎么样？
An ox is taken by the horns, and the man by the tongue.
牛因有脚而被抓，人因有舌而遭殃。
It's about the universe. The speaker's supposed to be excellent.
是关于宇宙的。演讲人应该是一流的吧。