名词
中文翻译：暗色污迹
同义词：
['dark spot', 'dark mark例句：1. The dark stain on the wall is caused by a spill of ink.（墙上的暗色污迹是由墨水滴落造成的。）']
例句：
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1. The dark stain on the wall is caused by a spill of ink.
墙上的暗色污迹是由墨水滴落造成的。
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2. The dark stain on his shirt is from a recent accident.
他衬衫上的深色污迹是近期事故留下的。
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3. The dark stain on the table is evidence of the food left there.
桌子上的深色污迹是食物残留的证据。