The bull markets have averaged about 19 years or so whenever su ly and demand have gotten out of balance.

牛市平均时间是19年左右，每每发生在供应和需求失衡之后。

youdao

The bull markets have averaged about 19 years or so whenever su ly and demand have gotten out of balance.

牛市平均时间是19年左右，每每发生在供应和需求失衡之后。

youdao