impression

n.印象，感想；印次，印数

impoverished, impoverishment, impracticability, impracticable, impracticably, impractical, impracticality, impractically, imprecation, imprecise, imprecisely, imprecision, impregnability, impregnable, impregnably, impregnate, impresario, impress, impress...on, impressed, impressionability, impressionable, impressionism, impressions, impressive, impressively, impressiveness, imprimatur, imprint, imprinting, imprison, imprisonment, improbability, improbable, improbably, improbity, impromptu, improper, improper fraction, improperly,