形容词
中文翻译：铁石心肠的
同义词：
['unyielding', 'unwavering']
例句：
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1. He is known for his ironhearted determination to succeed.
他以坚定不移的决心成功而闻名。
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2. The leader's ironhearted stance on the issue has united the opposition.
领导人坚定的立场使反对派团结起来。
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3. Despite her tough exterior, shehas an ironhearted heart that caresdeeply for others.
尽管她外表坚强，但她内心却非常关心他人。