单词	hammer butt
释义	hammer butt noun : the block holding the base of a hammer shank in a piano action Word History First Known Use 1840, in the meaning defined above
随便看	ptyalo- Ptyas ptyases ptyasses ptych- ptycho- Ptychodera ptychoderid Ptychoderidae Ptychoparia ptychopariid Ptychopteridae ptychopterygia ptychopterygial ptychopterygium Ptychosperma ptychotis oil ptychozoa ptychozoons ptyxes ptyxis pu Pu pu-hoe pua hemp

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