单词	Airdent
释义	Airdent noun Air·​dent ˈer-ˌdent : an instrument designed to grind tooth surfaces by means of a jet of carbon dioxide carrying abrasive powder under pressure Word History Etymology formerly a trademark First Known Use 1950, in the meaning defined above
随便看	pass (something) down pass (something) in pass as pass away pass by pass course pass degree pass door pass down pass examination pass for pass in pass into pass into history pass into law pass into the hands of pass it on pass judgment on pass line pass master pass muster pass off pass off as pass on pass out

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