Our hands also enable us to perform heavy labor, such as digging with a shovel, swinging an axe, using a jackhammer to drill through concrete, or pounding a railroad spike with a sledgehammer.

• 我们的手也使我们能够执行重体力活，如挖铲，摆动斧头，用电钻钻通过具体的，或冲击铁路穗与大锤。