Lucullite
卢卡尔石(一种产于埃及的浓黑色大理石)
🗣️ 情景例句
I'm tired of working all day.
我厌倦整天工作。
We never know the worth (or value) of water till the well is dry.
井枯方知水可贵。
Which would you prefer?
你要选哪个？