英语翻译Blue is a cooler color.The traditional blues music of Am

英语翻译
Blue is a cooler color.The traditional blues music of American blacks is the opposite of red hot music.It is slow,sad and soulful.To be “blue”,of course,is to be sad.
While the color green is natural for trees,it is an unnatural color for humans.When someone does not feel well,someone who is seasick,for example,we say he looks green.When someone is angry because he does not have what someone else has,we say he is “green with envy”.
我再补充一段 这个不用解释了（Blue is a cooler color.The traditional blues music of American blacks is the opposite of red hot music.It is slow,sad and soulful.To be “blue”,of course,is to be sad.）
Some people are “green with envy” because someone else has more dollars or “greenbacks”.Dollars are called greenbacks because that’s the color of the backside of the money.