英语翻译

题目

英语翻译
Researchers have longnoticed that active seniors suffer less cognitive decline than sedentary ones,andrecent studies suggest that aerobic exercise may make us sharper at any age.The benefits accrue quickly,but they require constant reinforcement.
When we are young and strong,we cannot imagine what it isto be weak and ailing.We are so used to vigorous health that we take it forgranted.The organs of our body work so smoothly that we scarcely know we havelungs and liver,heart and stomach.But when any of these get upset and give uspain and sickness,we learn by bitter experience what an unspeakableblessing it is to be well.

答案

Researchers have longnoticed that active seniors suffer less cognitive decline than sedentary ones,andrecent studies suggest that aerobic exercise may make us sharper at any age.The benefits accrue quickly,but they require constant reinforcement.
研究人员早就发现,活跃的老年人比久坐不动的人遭受更少的认知能力下降,近来的研究表明,有氧运动可以使我们在任何年龄更加敏锐.能快速获益,但需要不断巩固.
But when any of these get upset and give us pain and sickness,we learn by bitter experience what an unspeakable blessing it is to be well.
但当这些伤心和给我们痛苦和疾病,我们从悲惨的经历中学到的是健康就是福.