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downgrade词源

发布于：2025-07-05 02:15浏览量：72文/优校网

英文词源

downgrade (v.): 1930, from down (adv.) + grade (v.). Related: Downgraded; downgrading. As a noun, "a downward slope," from 1858.

词根词缀： down向下 + -grad-步,级 + -e

该词的英语词源请访问趣词词源英文版：downgrade 词源，downgrade 含义。