fumes是可數名詞嗎

fumes是可數名詞，fumes中文意思是n. 煙氣（fume 的複數）

Researchers believe their lungs were seared by the toxic fumes， but orca carcasses usually sink， so no autopsy was possible.研究者們認為它們是因毒煙霧灼傷肺部，但虎鯨屍體通常沉入海底，因而沒辦法進行屍體解剖。