cogKK [ˋkɔg] /ˈkɔɡ/名詞1齒輪、輪齒One broken cog can stop the entire machine from working.一個斷掉的齒輪就能讓整台機器停止運轉。2小螺絲釘、小角色常用於 a cog in the machineHe felt like just another cog in a huge corporate machine.他覺得自己只是龐大企業機器裡的一顆小螺絲釘。