For example:

来源: 于 2020-11-19 13:41:46 [旧帖] [给我悄悄话] 本文已被阅读：次

To illustrate the point:

2020, do cash-out refi on house A, put the cash into SP500.

2021, do cash-out refi on house B, put the cash into SP500.

2022, do cash-out refi on house C, put the cash into SP500.

2023, do cash-out refi on house D, put the cash into SP500.

Etc.