柯林斯詞典flywheel /?fla??wi?l/ (flywheels) 1. N-COUNT A flywheel is a heavy wheel that is part of some engines. It regulates the engine's rotation, making it operate at a steady speed. 調(diào)速輪 返回 flywheel劍橋詞典a heavy wheel in a machine that helps the machine to work at a regular speed 飛輪；慣性輪 返回 flywheel