idiom
a light at the end of the tunnel
表示情况很快会有所改善的迹象;在困难情况下的希望
Meaning
a sign that a situation will improve soon; hope in a difficult situation
Example
After months of hard work, she finally saw **a light at the end of the tunnel**.
经过几个月的努力工作后,她终于看到了**隧道尽头的光**。