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词汇 dross
词根词缀 词源:
O.E. dros "dirt, dregs," from P.Gmc. *drohs- (cf. Ger. Drusen "dregs, husks"). Originally "the scum thrown off from metals in smelting." Related to O.E. dreosan "to drip."
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更新时间:2025/1/23 11:40:32