Unlike nutrients that are found only in a few foods, protein is present in all foods.

与只有少数食物中含有的那些营养物质不同，蛋白质存在于所有食物中。

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This germ—which is present in soil and water, not feces—is responsible for "swimmers ear", an itchy or painful inflammation of the ear.

这种细菌——存在于泥土和水中，而非粪便——是造成“游泳耳”的主要原因，症状是耳朵发痒疼痛和红肿。

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No ambiguity is present in the schema.

在schema中没有出现不确定的内容。

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The other mosquito that can carry chikungunya,Aedes aegypti, also is present in the United States.

VOA: special.2009.04.13

That's important, too, because you need to be able to tell if the virus is present in the human population.

这一点也非常重要,因为你要能够分辨出,人群中是否有人感染了天花病毒

耶鲁公开课 - 生物医学工程探索课程节选

Here the unique thing was that there's a restriction site inside that is present in normal DNA and not present in sickle DNA.

刚才例子中,特性就是在正常的基因中,有酶切位点,而在患者的基因中却没有

耶鲁公开课 - 生物医学工程探索课程节选

Every single team executive, coach, asst. coach and scout is present in Indianapolis for the week.

FORBES: How To Be A Great Sports Agent: Part Four

According to researchers, some level of BPA is present in about 93% of people in this country.

FORBES: Higher BPA Levels Are Linked to Obesity In Kids And Teens

Bilawal Bhutto Zardari has barely lived in Pakistan. and is present in this campaign chiefly in television ads.

WSJ: Political Dynasties Shape Course of Pakistan Election