Opals
n. 蛋白石, 猫眼石, 乳色玻璃（ opal的复数形式 ）
🗣️ 情景例句
Well, he's asleep--finally.
好了， 他终于睡着了。
He knows enough that can live and hold his peace.
见多识广者沈默寡言。
I suppose it's better to be safe than sick.
我想安全总要比生病好。