Sinuses
灣, 穴, 竇, 竇房結, 竇道, 鼻竇, 瘺, 瘺管
??? 情景例句
Hello, I'm honored to make your acquaintance.
你好， 認識你是我的榮幸。
Don't play innocent.
別裝蒜！
and of dark narrow streets full of petrol fumes and toxic gases,
和陰暗狹窄的街道組成