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大学生活那些事不做人生的旁观者——是《追光逐梦》的口号，也是本节目所要传达的理念，围绕“真实、青春、梦想、成长”的关键词，以最真实的镜头记录当下社会倍受关注的“小鲜肉”，通过对90后明星的贴身跟拍，展现他们的真实自我和生存状态，他们的压力与困惑，荣耀背后的努力与付出……为青少年追星树立健康榜样，传播青春追梦正能量。The second classification principle of organisms is the lineage classification principle aiming at establishing evolutionary lineage. The classification method following this principle is called lineage classification. The representative of pedigree classification is "branch systematics". It advocates that the branches in evolution should be taken as the criteria for identifying and distinguishing classification units and the basis for determining the pedigree relationship of each classification unit. The so-called co-ancestral proximity (similar to a group of people being a grandfather) is used to measure the genetic relationship between different taxa and determine their position in the pedigree. The classification system finally established is an evolutionary pedigree reflecting the history of phylogeny, which is a deeper description of biological relationship. In other words, the basic principle of pedigree classification is that the classification system conforms to the evolutionary pedigree. Pedigree classification is only applicable to organisms and cannot be used for abiotic classification.70年代末期，自小在农村长大的杨柿红，和村里的牛旺相爱，后来两人家庭因为彩礼而闹翻，牛旺入赘到了邻村，杨柿红为了和他赌气嫁给了王长安，起初柿红觉得王长安窝囊，但经历了一段时间的生活，杨柿红慢慢成熟了起来，深深的被王长安的儒雅和走出大山的梦想感动，后来王长安因车祸去世，将一整个家留给了杨柿红，杨柿红为了对得起丈夫，也为了将孩子们教育成材走出大山，在煎熬与困苦中独自承担起了责任，一家人就这样艰难的向前走着，虽然有过机会走出大山改变命运，但柿红为了家人，最终还是留了下来，后来小儿子牺牲，柿红唯一一次走出大山却是为了迎回小儿子的骨灰。柿红历尽了悲欢离合的故事，告诉我们留守也是一种勇气，留守也同样高尚和伟大。1. Combustion process and flame retardant mechanism of fabrics心中暗道：尹旭，你可别让我失望啊，否则老头子不会放过你的。