Ordered arrangements of large groups of atoms and molecules are highly improbable.

大的原子群和分子群的有序排列是极不可能的。

《柯林斯英汉双解大词典》

Some managed large groups of men and women, piloted the explorers' river trail or undertook mapping work.

有些人管理着大量人群，男性女性都有，还为河道探险人引路，或承担测绘工作。

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Large groups of people began to gather along Deansgate.

大批人开始在Deansgate集结。

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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

Visitors using canoes or airboats are likely to see large groups of wading birds like the wood stork or great blue heron.

VOA: special.2009.06.30

After his residency, he began studying epidemiology--the science of conducting experiments on large groups of people.

FORBES: Face Of The Year: David Graham

The tech news site CNET says the plans are better for large groups of people.

CNN: AT&T introduces data-sharing plan

Groups connected with religious organizations or clubs can rope in large groups of investors.

FORBES: Fraud Victims Foiled By Their Own Overconfidence