cog
🇺🇸
/kɑːɡ/
🇬🇧
/kɒɡ/
A part of a wheel shaped like a tooth that helps wheels turn together.
The cog fit perfectly into the machine, making it run smoothly.
齒輪完美地嵌入機器中,使其順暢運行。
A wheel with teeth that mesh with other wheel teeth, helping turn or move something.
Each cog in the clock worked harmoniously, keeping the time accurate.
鐘表中的每個齒輪都協調工作,保持時間準確。