Researchers are currently testing their idea on a select herd of cattle.

研究人员目前正在一群选定的牛身上验证这一想法。

youdao

The handles were carved out of cattle bones and the bristles were made from wild boar or horsehair.

把手由牛骨刻成，刷子毛由野猪或马毛制成。

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At older lake sites, there's fossil remains from hippopotamuses, water buffalo, animals that spend much of their lives standing in water, and also, fossils of cattle.

在较老的湖泊遗址，有河马、水牛的化石遗迹，这些动物一生中大部分时间都站在水里，还有牛的化石。

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In the early eighteen eighties, the price of cattle rose to fifty dollars each, and many cattlemen became rich.

VOA: special.2010.03.18

Huge herds of cattle were brought there from western states to be transported by railroad to markets in the eastern United States.

VOA: special.2010.03.10

There were millions of cattle in Texas, but no way to get them to the eastern markets.

VOA: special.2010.03.18

For mile after mile, expropriated farmland seems empty of cattle or infested with weeds.

ECONOMIST: Zimbabwe's election

Resisting the onslaught, the Mexicans stampeded a herd of cattle against advancing French lines.

CENTERFORSECURITYPOLICY: When the Mexican Army defeated the French

At present the vaccination of cattle against bovine TB is forbidden under international and EU law.

BBC: Cattle TB vaccine 'is years away', MP is told