
Dead end. 死胡同.
a point at which you can make no further progress in what you are doing 绝境;僵局;死胡同
We had come to a dead end in our research.
我们的研究工作已陷入绝境.
This line of investigation could prove to be a complete dead end.
这种调查方法到头来可能是完全没有结果的.
He's in a dead-end job in the local factory(= one with low wages and no hope of promotion).
他在当地工厂的工作是没有前途的.