英语词汇rotational的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	rotational
词根词缀	Online Etymology Dictionary rotational adj. 1852, from rotation + -al(1).
随便看	bitumen bituminous -bium -bius bivalence bivalency bivalent bivalve bivariate bivouac biw- biweekly biz bizarre bize blab blabber blabbermouth black Blackamoor blackball blackberry blackbird blackboard black box

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