:the only available, desirable, or valuable thing唯一可获得（想要或有价值）的东西
For serious home cooks, this stove is the only game in town. [=it is the only stove that serious home cooks should want to have]对于真正的家庭厨师来说，这种炉灶是他们唯一想要拥有的。
Our company is no longer the only game in town. [=we now have competition; another company/business is doing what we do]我们公司现在已不再是一枝独秀了。