Many ants are small and forage primarily in the layer of leaves and other debris on the ground.

许多蚂蚁很小，主要在地面的树叶和其他碎屑中觅食。

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They occur primarily in regions of recent volcanic activity as hot, dry rock; natural hot water; or natural steam.

地热能主要以干热的岩石、自然热水或自然蒸汽的形式出现在近期火山活动的区域。

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Its use is primarily in dairy cattle and peri-urban areas where complementary services including milk marketing are available.

它主要用于奶牛和城市周边地区，这些地区提供包括牛奶营销在内的配套服务。

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The CBO projection is $7 trillion. The difference between the two estimates lies primarily in the fact that the CBO assumes the expiration of Bush administration-era tax cuts, while the White House is assuming that President Barack Obama will honor his pledge against allowing taxes to rise on families earning less than $250,000 a year.

VOA: standard.2009.08.25

All of the poets we read, even that New England hayseed, Robert Frost, begin their careers in metropolitan centers, primarily in London and New York.

我们阅读过的所有诗人，包括新英格兰的乡巴佬弗罗斯特，在大都会的中心开始了他们的职业生涯，首要的是伦敦和纽约。

耶鲁公开课 - 现代诗歌课程节选

What Milton is primarily interested in in his Nativity Ode is the redemption, the promise of what Christ's Nativity will do at some future point for mankind.

弥尔顿在基督诞生颂歌里最感兴趣的是,救赎，基督诞生后在将来,在将来能为人类做些什么。

耶鲁公开课 - 弥尔顿课程节选

The fastest-growing megacities over the past decade have been primarily in the developing world.

FORBES: The World's Fastest-Growing Megacities

Third-party ownership has persisted for decades in South America, primarily in Brazil and Argentina.

WSJ: Third-Party Ownership: How to Stud a Soccer Player

Finebaum's radio show at first will air primarily in the Southeast, ESPN's Connolly said.

WSJ: Paul Finebaum Ends His Silence, to Join ESPN