名词
中文翻译：观察的差异
同义词：
['variation', 'difference', 'disparity']
例句：
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1. The two cultures have significant differences in customs and traditions.
这两种文化在习俗和传统上有很大的差异。
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2. The results showed a significant difference between the two groups.
结果显示两组之间存在显著差异。
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3. The researchers found that there was a difference of observation between the two methods.
研究人员发现两种方法之间存在观察差异。