名词
中文翻译：循环路径
同义词：
['circulating path', 'circulation route']
例句：
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1.The new drug has a circulating path that is different from the old one.
新药的循环路径与旧药不同。
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2.The researcher found that the circulating path of the virus was different in different regions.
研究者发现病毒的循环路径在不同地区有所不同。
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3. The path of the river is marked with signs to guide visitors.
河流的路径上标有标志，以引导游客。