Groups of angry youths hurled stones at police.

一群群愤怒的年轻人朝着警察猛掷石块。

《柯林斯英汉双解大词典》

Groups of drunken hooligans smashed windows and threw stones.

成群醉酒的小流氓打碎了窗户，乱扔石头。

《柯林斯英汉双解大词典》

Fresh groups of guests arrived.

新客成批到达了。

《柯林斯英汉双解大词典》

Scientists believe large groups of wolves became stuck when they came to feed on animals already trapped in the asphalt.

VOA: special.2010.04.07

A studio of three hours' lecture in a large lecture hall, and two hours of recitation in groups of thirty.

在一个大的讲堂的教室里,讲三个小时讲座，并以三十人为一组,进行两小时背诵。

麻省理工公开课 - 媒体、教育、市场课程节选

Now they rent them out to other groups of, or other corporations, other companies.

现在他们已经把房子租给其它企业或者公司了。

旧金山的报纸 - SpeakingMax英语口语达人

Summary executions of African men in groups of 60 to 70 have been documented.

BBC: [an error occurred while processing this directive]

The group has been travelling, and waiting, with two groups of students driving ex-army Green Goddesses.

BBC: Customs row puts charity fire engine into reverse

Stonehenge and Avebury, in Wiltshire, are among the most famous groups of megaliths in the world.

UNESCO: World Heritage