名词
中文翻译：流动
同义词：
['follow', 'trace', "track例句：1. The river traces its way through the forest.（这条河穿过森林，蜿蜒流淌。）2. The detective traced the criminal's movements to find him.（侦探追踪犯罪分子的行踪，以便找到他。）3. The scientist traced the origins of the disease to its source in Africa.（科学家追踪这种疾病的起源，发现它起源于非洲。）"]
例句：
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1. The river traces its way through the forest.
这条河穿过森林，蜿蜒流淌。
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2. The detective traced the criminal's movements to find him.
侦探追踪犯罪分子的行踪，以便找到他。
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3. The scientist traced the origins of the disease to its source in Africa.
科学家追踪这种疾病的起源，发现它起源于非洲。