She is a carbon copy of her sister.她跟她姐姐长得一模一样。She's a carbon copy of her sister.她跟她姐姐一模一样.It has the plastic seperator for carbon copy checks.它具有塑料的碳副本检查分隔符....
这些账目滞后三个多月。The accounts are more than three months behind.总之, 感应电动势滞后于电流.In a word, the induced e . m . f . lags behind the current.电流滞后于电压.The current lags behind the voltage....