开场白的英文：
lead-in
prologue
prolusion

参考例句：

Heit's large eyes bulged and conveyed hints of much more than was implied by his noncommittal opening remark.
海特鼓起大眼睛，这比他那篇模棱两可的开场白含义要深得多了。

Her opening words were dramatic.
她的开场白十分引人注目。

She made a few introductory remarks.
她讲了几句开场白。

The prolog is extremely interesting.
这个开场白极其有趣。

After a few prefatory remarks,comments,etc
在几句开场白之后.

Prefatory remarks or observations.
开场白引言性的言论或评论

She prefaced her remarks By an apology.
她以道歉的话作为开场白。

It came from the advertiser at the beginning of the programme.
这是节目开始时那个报幕员的开场白。

By way of an introduction,I shall explain some of the historical background.
作为开场白,我来解释一下历史背景.

He preluded with some banal remarks
他讲了一些老套话作为开场白。

lead是什么意思：
v. 带领，引导；通往；致使；领先
n. 领先；榜样；线索；导线；铅

Will you take the lead?
你领个头好吗？

Lead poisoning( or plumbism )：Poisoning by accumulation of lead in the body.
铅中毒:铅在体内积累引起的中毒。

The road leads direct there.
这条路直接通那儿。

prologue是什么意思：
n. 序言，开场白；序幕，开端
v. 作序言，作开场白

The past is the prologue.
前事不忘，后事之师。

A drama begins with a prologue, but the prologue is not the climax.
剧是必须从序幕开始的，但序幕还不是高潮。

The prologue of the book is too tedious.
这本书的序言过于冗长乏味。

prolusion是什么意思：
n. 序幕,序乐,开场白,预演