名词
中文翻译：基本事实
同义词：
['fundamental fact', 'basic truth', 'fundamental principle']
例句：
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1. The basic fact of life is that we all need food and water.
生命的基本事实是，我们都需要食物和水。
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2. The basic fact about the universe is that it's expanding.
关于宇宙的基本事实是，它正在扩张。
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3. The basic fact of human nature is that we are social creatures.
人类本性的基本事实是，我们是社会性生物。