blind alley

英 [ˌblaɪnd ˈæli]

美 [ˌblaɪnd ˈæli]

n. 行不通的方法; 死胡同

牛津词典

noun

行不通的方法；死胡同
a way of doing sth that seems useful at first, but does not produce useful results, like following a path that suddenly stops

N-COUNT 死胡同；绝路；困境
If you describe a situation as ablind alley, you mean that progress is not possible or that the situation can have no useful results.
1. The Internet has proved a blind alley for many firms.
  事实证明，因特网对许多公司而言是一条行不通的路。

noun

(figurative) a course of action that is unproductive and offers no hope of improvement
1. all the clues led the police into blind alleys
2. so far every road that we've been down has turned out to be a blind alley
a street with only one way in or out
Synonym:cul de sacdead-end streetimpasse

This type of research turned out to be a blind alley.
这种研究证明是行不通的。
Or was he moving into still another blind alley?
不然他是不是又在向一条死胡同里钻。
After the prey is pushed towards the blind alley but the fear of the cat.
然后难得将猎物追到绝境却为了惧怕猫。
When he invested in that business, he went up a blind alley.
当他投资做那个生意时，他就走上了一条绝路。
He took the next turning to the left but found himself in a blind alley.
他在下一个拐弯处向左走，但发现走进了一个死胡同。
I'm afraid our present course of action may turn out to be a blind alley.
我担心我们目前这种干法可能是条死胡同。
His present job seemed to be a blind alley.
他现在的职业看来没什么前途。
My parents told me social worker is a blind alley occupation, but I stick to my guns to realise my dream.
尽管父母说做社工是没有前途的，但我仍坚持去实现我的梦想。
He has been trying to solve his money problem, but he is in a blind alley.
他一直尝试解决他金钱上的问题，但走进了死胡同。
This was the blind alley from which the Roman world had no way out: slavery was economically impossible, the labor of freemen was morally ostracized.
于是罗马世界便陷入了绝境：奴隶制在经济上已经不可能了，而自由人的劳动却在道德上受鄙视。