cash cow
US /kæʃ kaʊ/
UK /kæʃ kaʊ/
1.
搖錢樹, 現金牛
a product or service that generates a large amount of money for a company, often with little effort or investment once established
:
•
Their flagship software has been a real cash cow for years.
他們的旗艦軟體多年來一直是真正的搖錢樹。
•
The old product line might not be innovative, but it's still a reliable cash cow.
舊產品線可能不具創新性，但它仍然是一個可靠的搖錢樹。