The line of reasoning will only lead you up another blind alley.
那种推理方法只会把你引进另一条死胡同。
When he saw the police arrive, he bolted down an alley.
他看见警察来了，便从小巷逃走了。
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。
The side alley was walled off from the back garden.
侧巷和后花园之间用墙隔开了。
Each front door looks across a narrow alley to the front door opposite.
家家大门对大门，中间隔着一条窄巷。