单词	tiepin
释义	tiepin noun tie·​pin ˈtī-ˌpin  : an ornamental straight pin that has usually a sheath for the point and is used to hold the ends of a necktie in place Word History First Known Use 1780, in the meaning defined above
随便看	chemin de fer chemins de fer chemio- chemiosmotic chemiphotic chemise chemises chemisette chemisettes chemism chemisms chemisorb chemisorbed chemisorbing chemisorbs chemisorption chemisorptions chemist chemist's shop chemistries chemistry chemistry set chemists chemitypes chemitypies

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