单词	back shaft
释义	back shaft noun 1 : a countershaft driven by a back gear 2 : any shaft placed at the back of a machine Word History First Known Use 1847, in the meaning defined at sense 1
随便看	rontgenograms rontgens ronyon ronyons roo Roocooyen roocooyen rood planthoppers Plantigrada plantigrade plantigrades Plantin planting planting pit planting stick plantings plantless plantlet plantlets plantlike plantlike flagellate plantliker plantlikest plantling

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