名词中文翻译
中文翻译：理论
同义词：
['hypothesis', 'theory', 'principle', 'doctrine例句：1. Theories about the origin of life have been proposed for centuries.（关于生命起源的理论已经提出几个世纪了。）']
例句：
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1. Theories about the origin of life have been proposed for centuries.
关于生命起源的理论已经提出几个世纪了。
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2.The scientist conducted a theory-based experiment to test it.
科学家进行了一个基于理论的实验来测试它。
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3. The theory behind this phenomenon has yet to be fully explained.
这个现象背后的理论尚未完全解释清楚。