This particular object that many people love so much is actually based on kind of a scientific experiment -- the fact that bees have a very strong olfactory sense, and so -- much like dogs that can smell certain kinds of skin cancer -- bees can be trained by Pavlovian reflex to detect one type of cancer, and also pregnancy.
这项特别的物品许多人都很喜欢 实际上是基于一种科学实验 － 事实上蜂有很强的嗅觉， 因此 － 就像狗可以嗅出某种皮肤癌 － 蜂也能训练以巴甫洛夫反射 来侦测一种癌症，以及验孕。