讲话前，我必须先表示歉意。

I must preface my remarks with an apology.

《牛津词典》

不过要注意，尽管我使用了术语原始表示，您仍然可以先对数据进行转换或格式化。

Do note, however, that although I use the phrase raw representation, you can still transform or normalize the data first.

youdao

因此我必须先创建类的骨架结构，然后才可以得到表示测试结果不正确的红条。

So I must create a skeleton structure of my class before I can even get a red bar.

youdao

On the right hand side, the work, let's call this left hand side, let's call this right hand side.

在右手边，让我们先在这里,标下标表示左手，这里示右手。

麻省理工公开课 - 热力学与动力学课程节选

That's just the simple sequential sense of "first," the first that comes before second, third and fourth; but there's something more radical here than the ordinal or sequential sense of "first."

这只是“先“表示顺序的简单含义,先于第二，第三，第四的那个“先“，但这里,“先“除了表示顺序的意思外还有更激进的含义“

耶鲁公开课 - 弥尔顿课程节选

And let's start by considering my payoffs on this picture, just to help myself a bit, let me put some points in here.

我们从在图上表示预期收益开始,稍微等我一下,我先标注出来几个点

耶鲁公开课 - 博弈论课程节选