英语词汇crankshaft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	crankshaft
词根词缀	Online Etymology Dictionary crankshaft n. 1803, from crank, v. + shaft, n.. The basic form of the mechanism appears to date from Roman times.
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