a long-distance running race of 26.2 miles (42.195 km)
noun
أمثلة:
• She trained for six months to run her first marathon.
• He crossed the finish line of the Boston Marathon after four hours of running.
a long and exhausting task or activity that requires sustained effort
noun
أمثلة:
• The negotiations were a marathon lasting over twelve hours.
• Getting the project approved turned into a bureaucratic marathon.