fast buck

例句：

1. 1. He's always looking for a fast buck to make some easy money.
   他总是在寻找快速赚钱的方法来赚些快钱。
2. 2.She's been trying to get a fast buck by selling her old clothes online.
   她一直在尝试通过在网上卖旧衣服来快速赚钱。
3. 3. The fast buck is often associated with risky investments and gambling.
   快速赚钱往往与高风险的投资和赌博联系在一起。