多巴胺是怎么一回事？

记录浆果老师记录

![image.png](https://cdn.modevol.com/user/clli4pcey2jvo01mlc8gp8kem/images/p3ocoyqsgo702kn4c06hz889.png)

![image.png](https://cdn.modevol.com/user/clli4pcey2jvo01mlc8gp8kem/images/p0yas03f1imk4eimeugc41ls.png)