That's right -- flies, like people, have dopamine, and it acts on their brains and on their synapses through the same dopamine receptor molecules that you and I have.
对--果蝇，就像人一样，有多巴胺， 而且它通过跟你我一样都有的 多巴胺受体分子直接作用到 它们的脑部和神经突触。