The retail division is BT's cash cow.

零售部是英国电信公司的摇钱树。

This puts a cash cow at risk.

这就使得摇钱树处于风险之中了。

She is the cash cow in the family.

她是他们家的摇钱树。

Jim: Well, it could be a real cash cow.

吉姆：呃，那可以像摇钱树一样赚大钱。

Action films are still this cinema's cash cow.

动作片仍然是这家影院的摇钱树。