| 单词 | cough | 
| 释义 | cough1 of 2verb   ˈkȯf    coughed; coughing; coughs   intransitive verb 1   : to expel air from the lungs suddenly with a sharp, short noise : to emit a cough (see cough entry 2 sense 1)  The dust made him cough repeatedly. 2   : to make a noise like that of coughing  The engine coughed and sputtered and then stopped. transitive verb   : to expel by coughing  —often used with up  cough up mucus cough2 of 2 noun1   : a sudden, sharp-sounding expulsion of air from the lungs acting as a protective mechanism to clear the air passages or as a symptom of pulmonary disturbance   2   : a condition marked by repeated or frequent coughing  She has a bad cough. | 
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