Among the 10 worst performers were some of the most populous states, including Texas, which was given the lowest grade (F) and has a disproportionate influence because its textbooks are widely sold elsewhere.Among the 10 worst performers were some of the most populous states, including Texas, which was given the lowest grade (F) and has a disproportionate influence because its textbooks are widely sold elsewhere.Among the 10 worst performersweresome of the most populous states, {including Texas, (whichwas giventhe lowest grade (F) and hasa disproportionate influence)[because its textbooks are widely sold elsewhere]}.[主干]Among the 10 worst performers were some of the most populous states --倒装结构， “在是个表现最差的州里有些是美国人口最多的州”|--[插入语]including Texas “包括德州在内的” |--[定语从句]which was given the lowest grade (F) and has a disproportionate influence--非限制定语从句，修饰之前的Texas，“这些被给予最低分F，并且有着不相称的影响力” |--[状语从句]because its textbooks are widely sold elsewhere“因为它的教材在其他地方广泛被售卖”1、populous adj.人口众多的，人口密集的1、“得意”--得到了句子的灵魂，获取核心意思与逻辑
本句话的本质是在说明，当“巨大的市场权力”（教科书广泛售卖）和“极低的质量标准”（F级评分）结合在一起时，会产生一种“劣币驱逐良币”的系统性风险。
2、“忘形”--摆脱英文的形式束缚，用中文重构
在十个表现最差的州中，不乏一些人口大州，例如德克萨斯州。该州评级为F，却拥有与其低质量不相称的巨大影响力，因为它的教科书被广泛销往其他地方。
