I didn't catch the last bus even though I was on my way.
51、亡羊补牢，犹为未晚。
It's never too late to mend.
52、少壮不努力，老大徒伤悲。
A young idler, an old beggar.
53、这冰还没有厚到你可以在上面走的程度。
The ice is not thick enough for you to walk on.
54、我确信会成功。
I'm sure it will succeed.
55、他工作越努力，就感到越幸福。
The harder he works, the happier he feels.
56、我来是和你告别的。
I came to say goodbye to you.
57、总玩电脑游戏对你的学习不利。
Playing computer games all the time is bad for your study.
58、我昨天收到了我弟弟的一封来信。
I received a letter from my brother yesterday.
59、我已经写完了故事。
I've finished the story.
60、老师来了，咱们别说话了。
Here comes the teacher. Let's stop talking.
