n.顽固，固执；顽强,（病痛等的）难治，难解除,顽固的事例；固执行为
obstinacy的复数

原形：obstinacy复数：obstinacies

His obstinacy in refusing to apologize is causing tension in the team.
他坚决不肯道歉的态度正在团队中造成紧张气氛。
Despite numerous warnings, she persisted in her obstinate behavior.
尽管多次警告，她仍然固执地坚持自己的行为。
The child's obstinacy made it impossible to reason with him.
这孩子的固执使得无法与他讲道理。
His obstinacy led to a breakdown in communication with his family.
他的固执导致了与家人的沟通破裂。
She displayed remarkable obstinacy in fighting against the disease.
她在与疾病的斗争中表现出了非凡的坚韧不拔。
The negotiations failed due to the obstinate stance of both parties.
谈判失败是因为双方都采取了顽固的立场。
His obstinacy prevented him from seeing the error in his ways.
他的固执使他无法认识到自己的错误。
In the face of adversity, she showed an unwavering obstinacy.
在逆境中，她展现出了坚定不移的决心。
The old man's obstinacy was endearing, but also frustrating at times.
老人固执的性格既令人喜爱，有时又让人头疼。
The politician's obstinacy on the issue alienated many voters.
那位政治家在这个问题上的固执疏远了许多选民。