形容词
中文翻译：大胆的
同义词：
['brave', 'reckless', 'impetuous']
例句：
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1. The captain was bold enough to take the risk of leading the expedition.
船长勇敢地带领探险队冒险。
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2. He is a bold man who always takes charge when needed.
他是一个勇敢的人，总是在需要时承担责任。
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3. The bold young writer decided to publish her novel despite the risks.
这位勇敢的年轻作家决定冒着风险出版她的小说。