obstinate

adj.

顽固的；固执的；难于控制的；方头不劣

1. The obstinate child refused to answer.
   这固执的孩子拒绝回答。
2. Because their hearts had turned hard, stubborn and obstinate.
   重点是在于他们的心已经是硬的，是固执的，是顽固的。
3. He examined my obstinate expression, and switched to another line of attack.
   他打量着一脸倔强的我，又转移战地。
4. Only a man full of the milk of human kindness could have continued to befriend the proud and obstinate young man.
   只有天性善良的人才会和这个性情高傲脾气倔强的年轻人继续交往。

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Obstinate Nature: An Ecology of Individuals. Thoughts on Reproductive Behavior and Biodiversity
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On the Role of Outside Options in Bargaining with Obstinate Parties
Neo-Functionalism: Obstinate or Obsolete? A Reappraisal in the Light of the New Dynamism of the EC
Indexing in single-crystal diffractometry with an obstinate list of reflections
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Compliant sinners, obstinate saints: : how power and self-focus determine the effectiveness of social influences in ethical decision...