travertinen.
英 'trævətɪn | 美 'trævɚ,tin
中文n. [地质] 石灰华(一种多孔碳酸钙)
词根词源
travertine (n.)1797, from Italian travertino "a kind of building stone," from Latin tiburtinus, from Tiburs, adjective from Tibur (modern Tivoli), in Latium.
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