The biology of these diseases is terribly complicated.

这些疾病的作用方式极其复杂。

《柯林斯英汉双解大词典》

The public is generally uninformed about these diseases.

大众对这些疾病普遍知之甚少。

《牛津词典》

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Treatments for these diseases cost the United States almost one hundred fifty billion dollars every year.

VOA: special.2010.06.07

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

Now let's see where diet comes into play here and how diet affects these different diseases.

现在我们来看看饮食和它们的关系,饮食又是如何影响这些不同疾病的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

These diseases are growing problems even in the world's poorest places, such as Kenya.

ECONOMIST: Patently troublesome

To tackle these diseases, we need holistic solutions, especially in countries with less-developed health-care systems.

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Finally, these diseases are rare in populations that have not been influenced by Western habits.

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