preface
n. 序言, 前言；开端, 前奏
vt. 作为…的序言, 作为…的开端
搭配：the preface to（not OF）a book 序言
辨析：preface是与本文无关的“序”
introduction 是本文中的“导言”
foreword 是简短的“前言”
1.He has written a fine preface to the play.
他为这个剧本写了一篇精彩的序言。
2.A short documentary prefaced the feature movie.
故事片开始前放映了一部短纪录片。
1. This book has a preface written by the author.
这本书有作者写的序言。
prescribe
vt. & vi. 开药方; 指示；规定, 指定遵守
1.The doctor prepared to prescribe a receipt.
医生准备开个药方。
2.The law prescribes how to punish this crime.
法律对如何处罚这种犯罪做出规定。
3.I'll prescribe a bottle of cough syrup for you.
我给你开一瓶咳嗽糖浆。
4. Do not prescribe to me what I should go to do.
不要规定我做什么事。
presence
n. 出席, 到场, 存在；仪表, 仪态
搭配：in the preserve of 当着...的面，在..在场的情况下
lose one's preserve of mind 心慌意乱
1.Your presence at the party is requested.
敬请光临。
2.He had a tremendous physical presence.
他仪表堂堂。
3.Absence sharpens love, presence strengthens it.
相聚爱益切，离别情更深。
4.Will you grace our party with your presence?
如蒙光临，不胜荣幸。
preserve
vt. 保护；维持
辨析：preserve： prevent sb./sth.from being harmed or destroyed(保护，保藏)；keep unchanged (保持，维持)
conserve：use carefully without waste(保存，保藏)
reserve：keep for special use （保留，储备）；book（订，预定）
1.We must preserve our natural resources.
我们必须保护自然资源。
2.It is the duty of the police to preserve public order.
维护公共秩序是警察的职责。
3.God preserve us!
上帝保佑我们吧！
4.But how to preserve the past while promoting progress?
那么，如何在推动进步的同时保护历史传统呢？
