sputa

例句：

1. 1. He coughed up some sputa after the operation.
   手术之后，他咳出了一些痰。
2. 2. The patient's sputa tests came back positive for tuberculosis.
   患者的痰检测结果显示结核杆菌阳性。
3. 3. Sputum samples were collected from the patient's lungs.
   从患者的肺部收集了痰样本。