So, a natural product is something that is made by nature, and often natural products, whether it comes from a plant or a marine organism have some really good, useful properties. And so, one particular compound has anti-tumor properties. So, again, along this line of cancer research.

天然产物是在自然界中生成的,通常一个天然产物，不管是来自植物或者海洋生物,都有些非常好非常实用的性质，其中的一个特殊的化合物,可以治疗癌症,再一次我们又来到癌症研究上。

麻省理工公开课 - 化学原理课程节选

We'll talk about whether food can promote health; of course it can if done right, and we'll talk about the specific properties of food that promote good health and what can be done to increase the opportunity of food to improve the public's health in a national and international way.

我们将讨论食物是否能促进健康,当然,适当的饮食能促进健康,我们还将讨论健康食品的特殊性质,以及我们如何,通过食物来提高,全国乃至全世界公众的健康水平

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选