:a reason to believe that a bad situation will end soon or that a long and difficult job will be finished soon(困境中)希望的曙光;光明
They are falling deeper into debt, and there is no light at the end of the tunnel.他们在债务的泥潭中越陷越深,看不到光明。
The work on our house has been going on for months, but we're finally starting to see a light at the end of the tunnel.房子的工程已经进行了好几个月,不过我们终于开始看到成功的曙光了。