Now, the VOA Special English program WORDS AND THEIR STORIES. Cold weather has a great effect on how our minds and our bodies work. Maybe that is why there are so many expressions that use the word cold. For centuries, the body's blood has been linked closely with the emotions. People who show no human emotions or feelings, for example, are said to be cold-blooded. Cold-blooded people act in cruel ways. They may do brutal things to others, and not by accident. ______________________________ 现在是美国之音慢速英语词汇掌故节目. 寒冷天气会对我们的头脑和身体产生很大影响.可能这就是许多短语使用cold这个单词的原因. 数百年来人体血液都和情感紧密相连.例如,没有任何人类情感或感受的人被称作冷血(cold-blooded).冷血的人行事残酷,他们可能对其他人做出非常残暴的事情,而且并非出自偶然. _________________________