broker term history for Dummies
The training or occupying of the mind, esp. the knowing, in an active way; engagement in mental action or activity: see various senses of…rationale, ground - a rational motive for your belief or action; "The rationale that war was declared"; "the grounds for his or her declaration"知乎，让每一次点击都充满意义 —— 欢迎来到知