impossibility 考研专八

He hinted at the impossibility of winding up the work in two months.

他暗示在两个月这项工作是不可能的。

Obviously this method has every limited application in most instances, because of the impossibility or impracticability of segregating specific items as coming from separate purchases.

由于辨认存货不同购买来源的具体批次是不现实的，很明显个别计价法的使用有很大的局限性。