[TOP]sinus si·nus / ˈsainəs / noun any of the hollow spaces in the bones of the head that are connected to the inside of the nose 窦；窦道: blocked sinuses 窦性传导阻滞 [TOP]sinus si·nus / ˈsaɪnəs ; ˈsaɪnəs / noun [C] 1. your sinuses are the spaces in the bones of your head that are connected to the inside of your nose 窦，窦道〔颅骨中与鼻孔相通的空穴〕: blocked sinuses 阻滞的窦道 a sinus infection 窦感染 [TOP]sinus['saɪ.nəs] noun countable » any of the spaces inside the head that are connected to the back of the nose 鼻窦，窦 [TOP]sinus ●○○○○
1.N-COUNT 可数名词 鼻窦 Your sinuses are the spaces in the bone behind your nose.
【搭配模式】：usu pl
I still suffer from catarrh and sinus problems. 我仍然患有黏膜炎和鼻窦炎。