바퀴나 기어의 중심을 관통하여 회전을 지지하거나 함께 회전하는 금속 막대.
A central shaft for a rotating wheel or gear, which may be fixed to the wheel and rotate with it, or fixed to a vehicle with the wheel rotating around it.
예문:
"The mechanic noticed that the rear axle was slightly bent after the vehicle hit a large rock."
"Heavy-duty freight trucks often have multiple axles to distribute the weight of the cargo more effectively."
"Applying grease to the axle prevents excessive friction and ensures the wheels spin smoothly."