Celestobarite
锶重晶石
🗣️ 情景例句
Either I'm at the hospital doing paperwork,
不是我在医院办公事，
Have a nice day.
祝您好。
They made no effort to hide their amusement whenever I produced a packet of sweets from my pocket.
每当我从口袋里掏出一包糖果时，他们都毫不掩饰地表现出他们对此感到非常好笑。