我应该在这个Django模型中使用ForeignKey吗？

I've been reading a lot about Django and have finally begun developing the models for a project I've outlined, but I'm having trouble understanding ForeignKeys, and how/when to use them. I have read a bit about database work to better understand Foreign keys in general, but with no prior database experience I am still kind of confused.I've been reading a lot about Django and have f