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a wooden tool with a long handle and a large head, used for hitting things 木槌 
Use a heavy mallet to drive in the pegs. 用重锤敲入钉子。
a piece of equipment with a long handle and a wooden head, used for hitting the ball in the games of croquet and polo （槌球和马球运动的）球棍，球棒
Word Originlate Middle English: from Old French maillet, from mail ‘hammer’, from Latin malleus.