在F＃中，我可以在一个线程上调用一个函数，但在另一个线程上返回吗？

I really want to be able to have a function pass some responsiblity to another object and then return on a different thread. I know this means the caller would not know that it had switched threads, but I REALLY want to know if there is ANY way to have the function return on a different thread than it was called on.I really want to be able to have a function pas