Knopite
铈钙钛矿(钛酸钙矿夹杂氧化铯及氧化铁)
🗣️ 情景例句
No, thank you.
不用 谢谢你。
Parents usually put a small red paper packet under their child's pillow.
父母常常会在孩子枕头下放一个小红包。
It's quite likely that a decision will be made before the end of the year.
有可能年底前就要作出决定。