词根词缀：retro-, retr-
【来源及含义】Latin: back, backward, backwards; behind
【同源单词】arrear, regurgitant menstruation, retroact, retroaction, retroactive, retroactively
| 词汇 | retro-, retr- |
| 词根词缀 | YoudictWordRoots 词根词缀：retro-, retr-【来源及含义】Latin: back, backward, backwards; behind 【同源单词】arrear, regurgitant menstruation, retroact, retroaction, retroactive, retroactively |
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