请问pigen-hole是什么意思。翻译这个句子好么？

n any one of a set of small open boxes, esp in a desk, for keeping papers in, or fixed on a wall for messages, letters, etc （文件或信件的）分类格架. v [Tn esp passive 尤用於被动语态] 1 put (papers, etc) in a pigeon-hole (and ignore or forget them) 将（文件等）放进分类架中（置之不理或搁置）: The scheme was pigeon-holed after a brief discussion. 那计画草议后就搁置一边了. 2 classify or categorize (sth) esp in a rigid manner 将（某事物）分类、 归档（尤指硬性地）: She felt her son had been pigeon-holed as a problem child. 她认为自己的儿子硬被划入了有问题儿童之列.

句子的大致意思:你不能为了训练的需要而将事物进行硬性的分类，我所见到的，也是我所寻求的精湛训练，是那些能够用各种不同的知识解决问题的人所带来的。(翻译纯属原创，如有错误，请多指正，目的在于互相学习）