名词短语
中文翻译：定义领域
同义词：
['defining field', 'defining domain', 'defining scope']
例句：
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1. The field of quantum mechanics is vast and complex.
量子力学领域广阔且复杂。
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2. The field of economics is constantly evolving.
经济学领域不断演变。
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3. The field of astronomy is fascinating and endlessly interesting.
天文学领域令人着迷且充满无限趣味。