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
I can't build a fire by rubbing two pieces of wood together.
我总不能靠着磨擦两片木柴来取火吧。
He is studying the ecology of ameba.
他在研究阿米巴
The small ship, Elkor, which had been searching the Barents Sea for weeks, was on its way home.