单词	twenty-first
释义	twenty-firstˌtwenty-ˈfirst noun [countable usually singular] your twenty-first birthday or the celebration you have for it
随便看	Doomsday Doomsday Book, The doomster doomy Doonesbury door doorbell do-or-die doorjamb doorkeeper doorknob doorknocker doorman doormat doornail doorpost door prize doorstep Doors, The doorstop door-to-door doorway doozy dope dopehead

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