名词
中文翻译：Unknown
同义词：
['negative result', "doctor's negative"]
例句：
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1.The test results were negative for the virus.
这个测试对病毒的结果为阴性。
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2. Doctors often recommend a low-fat diet for their patients with negative cholesterol levels.
医生们常常推荐低脂饮食给那些胆固醇水平为阴性的患者。
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3. The patient's blood pressure was negative, which is good news for his health.
病人的血压为负数，这是对他健康的好消息。