其实第一句话才是重点啊

“上周开始做空，难受了三四天。”

股市里交易的钱是时间换来的， 是主动收入.

另一个方面：、英文；

In most cases, rental income is treated as passive income, even when an investor spends time overseeing a rental property business.

因为每个月等房租不会难受...所以你斗地主没法赢