1. I took a wrong turn and ended up at a dead end.
我走错了路，走到了死胡同。

2. The investigation hit a dead end when all leads turned out to be false.
调查陷入了死胡同，因为所有线索都被证明是虚假的。

3. The company had to lay off employees when they reached a financial dead end.
公司在陷入财务困境时不得不裁员。

4. I feel like my career has hit a dead end and I don't know where to go from here.
我觉得我的职业生涯陷入了死胡同，不知道接下来该怎么办。

5. The road construction abruptly ended in a dead end, leaving drivers frustrated.
道路施工突然到了一个死胡同，让驾驶员感到沮丧。

6. The negotiations between the two parties reached a dead end as neither was willing to compromise.
双方谈判陷入僵局，因为双方都不愿意妥协。