The walking process we would put a slip of paper between our knees.

学习走路的时候，我们要在两膝之间夹着一张纸。

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So, the researchers added people walking around, noises coming from the hallway, paper airplanes flying every which way, and other distractions.

所以，研究人员增加了人们来回走动的声音，走廊里的噪音，纸飞机到处飞以及其他类似干扰性的事物、声音。

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In this paper, the stability of legged vehicle while walking on slope has been analyzed.

本文系统地分析了步行车辆在坡道上行走时的稳定性问题。

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While Tate Britain is showing his most famous industrial scenes, many of the Lowry's exhibits are art school sketches, preparatory drawings or visual aid memoires he made on scraps of paper while walking the streets of Salford and Manchester.

BBC: 'Real' Lowry in previously unseen art exhibition

On paper, The Walking Dead seems like a terrible idea.

FORBES: Three Lessons From The Record-Breaking Finale Of 'The Walking Dead'

Almost 40 years later, oddly enough, as she was being driven through Florida by her son, also Jim, she spotted in the wilderness, miles from anywhere, an old man in a mackintosh holding a paper bag and walking with a cane.

ECONOMIST: Doris Haddock