pertinacity

In the wide wide world there might be found another, his equal in pertinacity, but never in this little lane of ours.

在这个广袤的世界里，也许可以找到另外一个跟他一样执拗的人，但是在我们这个小巷子里根本不可能。

An expert problem-solver must be endowed with two incompatiblequalities – a restless imagination and a patient pertinacity.

一个解决问题的专家必须要具备两项矛盾的品质——天马行空的想象力以及不撞南墙不回头的顽固精神。

The difficulty for new growth mode to emerge reflects the pertinacity of traditional mode, the ability of traditional mode to remain unfailing lies in its solid institutional base.

新增长模式的难产反映了传统模式的顽固，而传统模式的经久不衰，又在于它深厚的制度根基。