Before you find out let us first see what this world is.

在你找出答案之前，让我们先看看这个世界是什么。

youdao

Let us first remember why we had this debate - and why it was right to do so.

让我们首先记住为什么我们会有这次的争论，以及为什么这样做是对的。

youdao

Let us first describe Plato's Utopia in its broad Outlines, and then consider points that arise by the way.

让我们先来描叙柏拉图乌托邦的大致轮廓，然后再考虑所遇到的各个问题。

youdao

But first,let us know how you feel about grades.

VOA: special.2009.03.05

or at least one mechanism, I shouldn't say -- the only one-- one mechanism for doing that is going to be to add functions is that it's going to provide both of these things, so the first thing it's going to do is, it's going to let us break up into modules.

我们处理这些的机制--至少一种机制,我不会说只有一种,一种机制是在我们的语言中增加函数,函数的关键是它要提供分解和抽象,所以第一件要做的事，就是将代码分解为模块。

麻省理工公开课 - 计算机科学及编程导论课程节选

Let us look first at St Peter's Basilica.

BBC: What is the chance of lightning striking St Peter's?

Ben was kind enough to let us run it first but it will end up on his blog soon, where he starts his posts with a rap or hip-hop lyric.

FORBES: Should Venture Capitalists Quote Kanye West?

Let us consider Gers first.

BBC: Deficit, growth and prospects