英语词汇thwack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	thwack
词根词缀	Online Etymology Dictionary thwack v. "to hit hard with a stick," 1520s, of echoic origin. Related: Thwacked; thwacking. The noun is recorded from 1580s.
随便看	plainness plain, plaint plains plainsman plain-song plain-spoken plaint plaintiff plaintive plais plait plan- plan planar Planaria planchet Planck plane planet planetarium planetary planform plangent plani- -plania

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