What's the difference between a camera set and a stand-alone camera?

Different definitions, different people, different clarity.

1, with different definitions: a set of cameras refers to a SLR camera with a standard lens configuration at the beginning, and a stand-alone camera refers to only the body without a lens.

2, suitable for different groups of people: the set is suitable for professional photographers, and the single machine is suitable for novices.

3. Different definition: the camera can change the lens, which has higher definition, while the single machine has only one body, and it needs to buy a new lens to realize photography.