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单词 durain
释义 du·rain
\ˈd(y)u̇ˌrān\ noun
(-s)
Etymology: Latin durus hard + -ain (as in fusain)
: one of two dull constituents of banded bituminous coal forming lenses or layers and composed of finely comminuted woody debris only partly decomposed — compare clarain, fusain, vitrain
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更新时间:2024/11/11 13:12:20