a way of referring to sb’s intelligence or mental ability 理智；智力
He’s losing his marbles (= he’s not behaving in a sensible way).
他失去理智了。
a type of hard stone that is usually white and often has coloured lines in it. It can be polished and is used in building and for making statues, etc. 大理石
a slab/block of marble
一块大理石板
a marble floor/sculpture
大理石地板／雕刻