For the purposes of this study, the three groups have been combined.

为了这项研究工作，三个小组业已合并。

《牛津词典》

There are three groups now.

目前有三个组。

youdao

These three groups are rarely identical.

这三个群体很少是相同的。

youdao

It must have fourteen lines, with three groups of four lines that set up the subject or problem of the poem.

VOA: special.2010.01.06

And, the values that it takes can be broken into three groups.

它所代表的值,能被分为三部分。

麻省理工公开课 - 固态化学导论课程节选

I'm social chair for three of the groups that I'm in.

我是我参加的三个团体的外联主席。

派对很好玩 - SpeakingMax英语口语达人

Percentages for all three groups are very similar on the need for a public plan.

FORBES: What's a politician to do?

As I will elaborate, I find it useful to divide these tools into three groups.

FORBES: The Crisis and the Policy Response

In all three groups, there are unique challenges, unique learning requirements and unique skill sets required.

FORBES: An Innovation Leadership Revolution Is Brewing