Knopite
铈钙钛矿(钛酸钙矿夹杂氧化铯及氧化铁)
🗣️ 情景例句
about taking care of babies, I assure you.
如何照顾小孩， 我向你保证。
It seems he's disappointed.
看起来他好像很失望。
It's running after a cat.
在追一只猫。