improvisation

n. 即席创作

imprimatur, imprint, imprinting, imprison, imprisonment, improbability, improbable, improbably, improbity, impromptu, improper, improper fraction, improperly, impropriety, improve, improve on, improvement, improvidence, improvident, improvidently, improvise, improvised, imprudence, imprudent, imprudently, impudence, impudent, impudently, impugn, impuissance, impulse, impulse buying, impulsion, impulsive, impulsively, impulsiveness, impunity, impure, impurity, imputation,