单词	be up to
释义	请查阅be up to somebody
随便看	down to sth downtown downtrodden downturn downturns down under downward downward downwardly compatible downwardlycompatible downwardly-compatible downwardly mobile downwardlymobile downwardly-mobile downwards down way downwind Down with Down with sb Down with somebody Down with somebody/something Down with something Down with sth downy down your/London etc way 诗词曲句诗词曲句诗词曲句诗词曲句诗词曲句诗词曲句诗词曲句诗词曲句诗词曲语辞例释诗词曲语辞汇释うず糸うず線うず輪うず運動うず雷うず電流うず電流ブレーキうず電流モータうず電流損うせる