a licence to print money
成語所屬單字licence
a licence to print money — 慣用語
1. A business that earns a lot of money with very little effort.
1.慣用語
釋義
搖錢樹
A business that earns a lot of money with very little effort.
例句
The popular app became a licence to print money for its creator.
Is that online store really a licence to print money?