名詞 preamble:

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

動(dòng)詞 preamble:

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

1. He spoke without preamble.
   他沒(méi)有開(kāi)場(chǎng)白地講起來(lái)。
2. He launched into his statement without any preamble.
   他開(kāi)門見(jiàn)山地發(fā)表言論。

pre.am.ble

n.（名詞）
A preliminary statement, especially the introduction to a formal document that serves to explain its purpose.
序言：預(yù)先陳述，尤指對(duì)正式文中的介紹，用以解釋其目的
An introductory occurrence or fact; a preliminary.
開(kāi)端：預(yù)兆性事件或事實(shí)；開(kāi)端

來(lái)源：
Middle English
中古英語(yǔ)
from Old French preambule
源自 古法語(yǔ) preambule
from Medieval Latin preambulum
源自 中世紀(jì)拉丁語(yǔ) preambulum
from neuter of praeambulus [walking in front]
源自 praeambulus的中性詞 [在前面行走]
prae- [pre-]
prae- [前綴，表.先于….]
ambul3re [to walk] * see ambulate
ambul3re [行走] *參見(jiàn) ambulate

【引伸】
pream.bular.y