Some groups that had descended from the same parent population were no longer reproductively compatible—they had evolved into separate species.

一些由同一亲本群体进化而来的群体在繁殖上不再相容——他们进化成了不同的物种。

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Some groups would get each other's attention by rapping branches with their knuckles, while others did it by loudly ripping leaves with their teeth.

一些群体会通过用指关节敲树枝的方式来互相博取关注，而另一些群体则是以大声撕咬叶子来吸引注意力。

youdao

Some of the statistical generalizations may be positive as some groups have reputations for being smart, for being loyal, for being brave, for all sorts of things that are not at all negative.

一些统计概括可能很正面，如某些群体以聪明闻名、或以忠诚闻名、或以勇敢闻名、或以其他各种积极的品质闻名。

youdao

They noted that some groups, as they move away from traditional ways of life, are developing diseases of modern living.

VOA: special.2009.07.20

You might believe some groups are unusually creative or intelligent.

你可能相信某些群体的人,具有异于常人的创意或智力。

耶鲁公开课 - 心理学导论课程节选

Here is an example that shows some very, very metallic elements, groups one and two, and some non-metallic elements over here, five, six and seven.

举个例子,这个例子表明金属元素，第一族和第二族，与一些非金属元素,在这里，第五族，第六族，和第七族。

麻省理工公开课 - 固态化学导论课程节选

Some groups have raised concerns the development could have an intrusive effect on the local area.

BBC: Cleveland Potash Boulby development to create 270 jobs

Competition for resources and personal feuds have already led some groups to fall out.

ECONOMIST: Syria��s rebels

Some groups have been subject to threatening financial audits, allegedly ordered by the federal prosecutor's office.

ECONOMIST: Russia