The assumption is that children shouldn't chat in the classroom because it hinders hard work; instead, they should learn to delay gratification so that they can pursue abstract goals, like going to college.
2015年12月四级真题（第一套）阅读 Section B
英语六级真题
Government regulation hinders economic development.
出自-2012年6月阅读原文
柯林斯高阶英汉双解学习词典释义
VERB
阻碍;妨碍;阻止
If something hinders you, it makes it more difficult for you to do something or make progress.