单词	add-in
释义	add-in adjective ˈad-ˌin  : being or able to be added to and enclosed within an existing system (such as a computer) add-in hardware add-in noun Word History First Known Use 1980, in the meaning defined above
随便看	retropacks retroperitoneal retroperitoneally retrophylla retrophyllums retropulsions retroreflection retroreflections retroreflective retroreflector retroreflectors retrorockets retrorse retrorser Saratogian Saratov saratovs Sarawak Sarawak bean sarawakians sarawaks sarbacane sarbacanes sarbican sarc-

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