preparation/ˌprep.əˈreɪ.ʃən/名词配制品;(常指医药)制剂a preparation for nappy rash治疗尿布疹的药剂准备工作;准备,预备Yasmin assisted in the preparation of this article.亚斯明协助为这篇文章做了一些准备工作。想跟读,去练习