Definition: a running race of slightly over 26 miles (42.195 kilometres) Level: B2
她在不到四小时的时间里完成了她的首次马拉松。
She completed her first ___marathon in just under four hours.
为了明年跑马拉松，我每周应该训练多少小时？
How many hours per week should I train to run the ___marathon next year?
他正在为波士顿马拉松进行严格训练。
He is in serious training for the Boston ___marathon.
