同义词： doggedness perseverance persistence persistency tenacity tenaciousness
以上来源于: WordNet
The pertinacity of her friend seemed more than she could bear.
她的朋友那样执拗，看来真让她受不了啦。
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。
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