名词中文翻译
中文翻译：理论
同义词：
['hypothesis', 'doctrine', 'principle']
例句：
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1.The theory behind the experiment was that it would increase efficiency.
实验背后的理论是它能提高效率。
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2.The scientist proposed a new theory to explain the phenomenon.
科学家提出了一个新的理论来解释这一现象。
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3. The theory of evolution by natural selection is widely accepted by scientists.
自然选择的进化理论被科学家们广泛接受。