up to the elbows in 忙于...up to the elbows in... 忙于(工作)...up to the eyes 非常忙...up to the hammer 第一流的,极好的...up to the hub 深深陷入...up to the mark 达到标准...up to the minute 最新的...up to the present 至今...up to then 直到那时...up to time 准时...up travel stop 上行停止装置...up wind 顶着风...up- pref.向上,在上...up-and-coming a.进取的,可能成功的,有希望...up-and-down a.一上一下的,时起时伏的...up-and-down motion 垂直方向往复运动;上下运动...up-and-up n.诚实,蒸蒸日上,趋好...up-converter 上行...up-country n.内地a.内地的,位于内地的...up-down bars 涨跌柱线...up-down counter 可逆计数器...
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