preamble
n. （法规、契约的）序言，绪论；前言，开场白
v. 作序文
复数 preambles或preamble
例句
The aims of the treaty are stated in its preamble.
条约的宗旨已在序言中说明。
《牛津词典》
She gave him the bad news without preamble.
她开门见山地把坏消息告诉了他。
The controversy has arisen over the text of the preamble to the unification treaty.
就统一条约的序文措词出现了争论。
《柯林斯英汉双解大词典》
