俚语口头禅:light at the end of the tunnel

【句子对照】
I ran a marathon last week. It was so long and I was so tired. I didn't really feel like there was a light at the end of the tunnel until I saw the finish line.
我上周参加了马拉松赛跑。路程太长了，我非常地累，直到看到终点线，我才感觉有一线曙光！

【关键俚语】
light at the end of the tunnel
英：a pleasant situation in the future which gives you a lot of hope and optimism
中：曙光乍现