名词中文翻译
中文翻译：树皮上的斑点
同义词：
['sap stain', 'sap mark']
例句：
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1.The old tree had many sap spots on its trunk.
这棵老树的树干上有很多树皮上的斑点。
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2. The sap spots were a sign of the tree's age.
树皮上的斑点是这棵树年龄的标志。
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3. The sap spots on the trunk were caused by the tree's decay.
树干上的树皮斑点是由树木腐烂造成的。