英语翻译Many years ago when people had no thermometers （温度计）,the

英语翻译
Many years ago when people had no thermometers （温度计）,they usually touched a thing to see how hot or cold it was.The following experiment shows how easy it was to make a mistake.
Take three glasses:the first one with very hot water,the second one with very cold water,and the third one with water at room temperature.Then you put a finger of one hand in the hot water,and a finger of the other hand in the cold water.You hold your fingers in the two glasses for a minute.Then you use each finger,one after another,to see how hot or cold the water in the third glass is.You will find that the water is warm to the finger that was in the cold water before,but the finger which was in the hot water will feel cold in the same glass of water.
That is why you must always find the temperature in a scientific way.You must not try to tell the temperature as it seems to you.
You will often make a mistake if you take something that seems to you for a real fact.For example,when you are going to an Amusement park by bus and you want to get there very quickly,it seems to you that your bus is going very slowly,slower than the other buses.But if it is Sunday and you have much free time,it seems to you all the buses and cars are going very fast.

很久以前当人们还没温度计的时候,人们通常通过触摸一物体来感觉它是热的还是冷的.下面的一个实验就表明了这种做法很容易犯错.
拿三个玻璃瓶：第一个装热水,第二个装冷水,第三个装室温的水.然后将你的一个手的某个手指放入热水,另一个手指放入冷水,将你的手指放在水中保持一分钟.然后再用你的每个手指,依次进行来感受第三瓶的水是怎样的冷热状况.这样你将发现以前放入冷水的手指感觉到温暖,而以前放在热水的手指感觉冰冷.
上面就是为什么你应该经常以科学的方式找出真实的温度.你不应该含糊地告知温度就像温度对你一样感觉不清.
如果你对一件事情真相了解不清你会经常犯错误.打个比方,当你正坐公交车去公园的时候你就想快点到达,那时候似乎感觉公交车开的很慢,比其他的公交车还要慢.但是如果是周末你有大量的清闲时间你似乎感觉所有的公交车和汽车都开的很快.