Everyone I know who kept it up at that intensity is burned-out.
我所认识的一直保持那样工作强度的人都早衰了。
《柯林斯英汉双解大词典》
2
If my training intensity remains the same, but I'm constantly hungry and dropping weight, this is a sign that I need to increase my daily caloric intake.
如果训练强度保持不变，却总是感到饥饿并且体重下降，这表明我需要提高每日热量摄入。
3
It was so unlike him to say something like that, with such intensity, that I was astonished.