But before we get there, let me give you a little bit of history as to why this is such an important reaction.

但在这之前，让我先介绍一下历史说明为什么，这个反应如此重要。

youdao

I will take you through a little bit history of the company.

我将简单介绍一下我们公司的历史。

youdao

I will take you through a little bit history of the company.

我将简单介绍一下我们公司的历史。

youdao