Sputum
n. 唾液, 痰
✅ 同义词
📖 牛津释义
sputum
n[U]
(fml or medical 文或医) liquid and mucus coughed up from the throat or lungs (esp as used to diagnose some diseases); saliva or spittle 痰（尤指可作诊断依据的）; 唾液; 口水.
🗣️ 情景例句
Who's this?
你是谁？
Hard to say.
很难说。
and if a single curved glass would distort nature, how much more would a pair of them?
何况一片曲面镜就可歪曲自然，那么伽利略的两片曲面镜对自然的歪曲又该多大呢？