I wrote the article myself, but my assistant gathered the information and did most of the other legwork.文章是我自己写的，但是我的助理收集了信息并做了大部分的外勤工作。The professor wrote the book, but his students did most of the legwork in the library.教授撰写了这本书，但上图书馆查找资料的跑腿活儿大部分是他学生做的。He has a team of volunteers who do most of the legwork for him.他有一组志愿人员为他做大部分跑腿的工作。