单词	tie-down
释义	tie-down noun ˈtī-ˌdau̇n  : a fitting or a system of lines and fittings used to secure something (such as an aircraft or cargo) Word History First Known Use circa 1942, in the meaning defined above
随便看	opercled opercula opercular opercular bones operculars operculate operculated opercules operculi- operculum operculums opere citato operetta operettas operettist operettists operon operons operose operosely operoseness operosenesses operosity operous opes

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