什么是 preparation?often An action done to prepare for something, especially for an event or undertaking: preparations for the opening of the new school.The act or process of preparing.The state of having been made ready beforehand; readiness.A substance, such as a medicine, prepared for a particular purpose.Music The anticipation of a dissonant tone by means of its introduction as a consonant tone in the preceding chord. The dissonant tone so anticipated.