preamble

中英例句：

1. He spoke without preamble.
   他沒有開場白地講起來。
2. He launched into his statement without any preamble.
   他開門見山地發表言論。

英文解釋：

名詞 preamble:

1. a preliminary introduction to a statute or constitution (usually explaining its purpose)

動詞 preamble:

1. make a preliminary introduction, usually to a formal document

詞型變化：