英语词汇dumbbell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	dumbbell
词根词缀	词源： "weighted bar used for exercise," 1711, originally an apparatus like that used to ring a church bell, but without the bell; used for exercise but sometimes also to practice ringing changes. Figurative sense of "blockhead" first recorded 1920, Amer.Eng.
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