单词	drop hammer
释义	drop hammer noun : a power hammer raised and then released to drop (as on metal resting on an anvil or die) Word History First Known Use circa 1864, in the meaning defined above
随便看	protozoae protozoal protozoan protozoans protozoas protozoea protozoean protozoic protozoologies protozoologist protozoologists protozoology protozoon protozoons Protracheata protracheate protract protracted protracted meeting protractedly protractedness protractednesses protracter protractible protractile

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