表达 “put your money where your mouth is” 指 “用你的行动而不仅仅是你的言语来证明你支持或相信某事”，就如汉语里说的 “说到做到，付诸行动”。在使用中，它常被用来表示 “不只是嘴上说说或作出空洞的承诺，而要有实际行动”，这里的 “实际行动” 常指 “金钱上的投入”。
- He's always talking about helping the environment, but he now needs to put his money where his mouth is and take some action.
他一直说要保护环境，但现在他需要有所行动。 - My boss often talks about providing training, but he needs to put his money where his mouth is and give us some.
我的老板经常说要给我们提供培训，但他得说到做到，给我们安排一些培训。 - The traffic situation hasn't improved so it's time to put your money where your mouth is and invest in the road building project.
交通状况没有改善，所以是时候开始付诸行动了，投资公路建设项目。
