Task: Translation
Input (Xhosa): Ikopolo yaziswa kuba izikhonkwane zentsimbi ngaphantsi kwesingxobo sekopolo ca yayingena zenza isenzo sombane phakathi kwezinyithi ezibini ezonzakalisa isingxobo.
Output (English): Copper was introduced because the iron nails under the copper sheathing, when it came in, caused electrolytic action between the two metals which damaged the sheathing.