步行马拉松与马拉松类似，但人们以步行代替跑步。
A walk-a-thon is similar to a marathon, but people walk instead of running.
步行马拉松结束后，我以为霍莉姨妈会再一次漠视我，没有半点感激之情。
When the walk was over, I expected Holly to pass over me again for even simple gratitude.
辅导有困难的同学， 帮邻居打扫房屋， 参加为特定事业筹款而进行的步行马拉松， 或者其他志愿活动。
Tutor a classmate who's having trouble, help clean up your neighborhood, participate in a walkathon for a good cause, or volunteer your time in some other way.
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