Cool invention
本文作者： 21ST
炫酷发明Turn stairs into a slide在家也能玩滑梯Slides6 are big fun for children. Now Trisha Cleveland makes this fun easy to get. The US inventor made SlideRider. It is a foldable (可折叠的) slide. It can turn any staircase (楼梯) into a slide. |  |
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