For example, in their Science Essentials course, they explain the story of how Barry Marshall proved that peptic ulcers are not the result of stress and spicy foods, but the bacteria H. Pylori.
例如,在科质课上他们解释 Barry Marshall 证明胃溃疡不是压力和辛辣食物引起,而是感染幽门螺旋杆菌。