broker term history for Dummies
The training or occupying from the thoughts, esp. the knowing, in an Energetic way; engagement in mental action or activity: see various senses of…cause, floor - a rational motive for a belief or motion; "the reason that war was declared"; "the grounds for their declaration"知乎，让每一次点击都充满意义 —— 欢迎来到知乎，