名词
中文翻译：痕迹
同义词：
['trace', 'imprint', 'mark']
例句：
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1.The footprints left by the children arestill visible on the grass.
孩子们的足迹仍然留在草地上。
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2. The old painting has aunique imprint of its time.
这幅旧画有着它时代的特殊印记。
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3. The fingerprints on the wall were evidence of whoever had been there before us.
墙上的指纹是来者之前的证明。