形容词
中文翻译：额外的
同义词：
['unusual', 'exceptional', 'extraordinary']
例句：
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1. The extratracheal approach to problem-solving is often more effective than the conventional one.
采用非常规方法解决问题往往比传统方法更有效。
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2. The extratracheal method of teaching has been shown to be more effective for students with learning difficulties.
采用非常规教学方法对于学习困难的学生来说效果更佳。
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3. In this case, the extratracheal approach was deemed necessary to ensure patient safety.
在这种情况下，采取非常规方法被认为是必要的，以确保患者的安全。