The first reason is simple: they are a part of a carefully crafted system in play.

第一个原因很简单：作为玩具体系的一部分，得宝积木的设计十分精妙。

So working together with my state and local partners, we crafted a plan to meet everyone's needs: the system, the inmates and probationers, my graduate students.

因此，我们与我的州和地方合作伙伴合作，制定了一个满足每个人需求的计划：系统， 囚犯和缓刑人员， 我的研究生。