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单词 lum 释义 ▪ I. lum north. dial. and Sc.|lm|Also 6 lumbe, 7 lume, 8 lumb.[Of obscure etymology; possibly an application of OF. lum light (:—L. lmen); cf. the uses of F. lumire in the sense of ‘aperture, passage’. The resemblance in form and sense...