单词	trade up
释义	trade up verb traded up; trading up; trades up intransitive verb 1 : to trade something in (something, such as an automobile) for something more expensive or valuable of its kind 2 : to stock or purchase higher-priced items Word History First Known Use 1905, in the meaning defined at sense 2
随便看	mommack mommas momme mommet mommets mommick mommies Mommsen mommy mommy track Momordica momordicae momordicas momoses momosses momot momoti Momotidae momotidaes momots Momotus momotuses momotusses moms momser

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