how broker differs from seller Fundamentals Explained
{5. Discrimination in style or alternative; difference: In this case, the law must make no difference amongst younger and outdated.知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。arithmetic : the degree or volume by which factors differ in quantity or evaluate specially : remainder feeling 2b(1)