And you can look at the picture about 层林尽染：http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&ipn=d&word=%E5%B1%82%E6%9E%97%E5%B0%BD%E6%9F%93&step_word=&pn=2&spn=0&di=58055089730&pi=&rn=1&is=&istype=&ie=utf-8&oe=utf-8&in=6314&cl=2&lm=-1&st=&cs=66654236%2C3397510309&os=4082374050%2C750245653&adpicid=0&ln=1000&fr=&fmq=1419964025843_R&ic=&s=&se=&sme=0&tab=&width=&height=&face=&ist=&jit=&cg=&objurl=http%3A%2F%2Ftravel.people.com.cn%2Fmediafile%2F201110%2F20%2FF201110201323286403201141.jpg&fromurl=ippr_z2C%24qAzdH3FAzdH3Fp6wejs_z%26e3Brj5rsj_z%26e3Bv54_z%26e3BvgAzdH3FBIGcAzdH3F88d80dAzdH3F88d809AzdH3F8clmd8b0_z%26e3Bip4s

It means that , in the autumn , there are lots of trees on the mountain , and the trees become red because of the frost , and it is very beautiful——that is the meaning of 层林尽染

“看万山红遍，层林尽染”This sentence quoted from MAO zedong's "patio spring · changsha" Want to understand this sentence, it is necessary to know its origin and complete sentences

嗯嗯，但问题就是成语中没有“秋色”这些字。

hard to explain in English