槭糖浆是用糖槭树中提取的树液制成的。

Maple syrup is made from sap extracted from the sugar maple tree.

《牛津词典》

这种药物是从原产于南美洲的金鸡纳树的树皮中提取的。到了1856年，对这种药物的需求已经超过了现有的供应。

The drug is derived from the bark of the cinchona tree, native to South America, and by 1856 demand for the drug was surpassing the available supply.

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在炼油厂，从地下提取的原油被分离成天然气、汽油、煤油和各种其他类型的油。

At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils.

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There they are. And, when they are named, they are named by suggestion by the scientist who have isolated them.

它们在这，当它们被起名的时候，是由科学家们建议的,那些提取它们的科学家。

麻省理工公开课 - 固态化学导论课程节选

So you hear about the Omega-3 fatty acids coming from seafood and these tend to be protective against diseases.

你们应该听过海鲜中提取的ω-3脂肪,这种脂肪能抵御多种疾病

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It's deliberate that a lot of the examples in lecture are fairly short and bite-size so that you can actually focus on pulling out the key ideas without getting distracted by line and lines of code.

很多的演讲中的例子,是短小的,因此你们可以集中于提取其中的主要思想,而不是被一行行的代码给分心。

哈佛公开课 - 计算机科学课程节选