柯林斯詞典sputum /?spju?t?m/ 1. N-UNCOUNT Sputum is the wet substance which is coughed up from someone's lungs. 痰[毉學(xué)] 返回 sputum劍橋詞典liquid from the passages in your body that go to the lungs 痰 比較phlegm 返回 sputum