名词
中文翻译：血斑
同义词：
['blood stain', 'bloodstain']
例句：
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1.The doctor found a blood spot on her shirt when he examined her.
医生检查她时发现她的衬衫上有血迹。
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2. He noticed the blood spot on the wall and realized it was his own.
他注意到墙上的血迹，意识到那是他的。
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3. After the accident, she found a blood spot on her dress that she couldn't explain.
事故发生后，她在裙子上发现了一个血迹，她无法解释。