✔ 最佳答案
Unless you can cover the top of the pen to keep out predators (hawks, cats, etc), then I would not advise it. And rabbits can dig their way out if given enough time.
The pen would be good, however, to use while under supervision. Only use it when you can be out there watching. It only takes a moment for a hawk to swoop down.
Your rabbit may be fine with your household cats, but that would be a different dynamic with stranger cats.
Have you considered housing her indoors with you? Then you can spend time with her in the evening while doing homework, etc. Just take her outdoors when you have time to sit outside with her.