单词	doohickey
释义	doohickeydoo‧hick‧ey /ˈduːˌhɪki/ noun [countable] American English informal Word Origin WORD ORIGINdoohickey Origin: 1900-2000 Probably from doodad + slang hickey ‘small object’ (1900-2000) a small object whose name you have forgotten or do not know, especially a part of a machine
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