For example, humans also have natural aversions to the bitterness of coffee or the harshness of tobacco, but those substances have some addictive qualities, which might make them desirable.

例如，人类对苦涩的咖啡或呛人的烟草存在天生的反感，但就是这些物质会让人有成瘾性，成瘾之后这些原本入不得口的东西会变得怡人起来。