licence to print money
印钞票的许可证
口语·暴利生意
英文释义
a business or investment opportunity that yields significant profits with little effort or risk
例句
That popular coffee shop is like a licence to print money—it's always packed.
典故来源
源自对政府印钞权的比喻，形容轻松赚取巨额利润的生意。