blind alley
US /blaɪnd ˈæl.i/
UK /blaɪnd ˈæl.i/

1.
死胡同, 尽头路
a street or passage that is closed at one end; a cul-de-sac
:
•
We drove down a blind alley and had to turn around.
我们开进了一条死胡同,不得不掉头。
•
The children were playing at the end of the blind alley.
孩子们在死胡同的尽头玩耍。
2.
死胡同, 绝境
a course of action that leads to no progress or a dead end
:
•
Their investigation led them down a blind alley.
他们的调查陷入了死胡同。
•
Pursuing that strategy would be a blind alley for the company.
推行这项策略对公司来说将是死胡同。