By then, he was no longer in the first flush of youth.

那经不再有青春朝气了。

He may be eighty,but he is still lively.

可能有80岁,但是仍然充满朝气。

We hope to inject new life into our business.

我们希望使我们的业务工作充满朝气。

Lastly, I think the campus should be regular, simpatico, it is different with society. and the student should study at the natural, full of youthful spirit, active circumstance!

最后,我觉得校园该是很规距,和谐的地方,与社会明显不同,学生理在一个正常地,充满朝气,积极的环境中学习!