这是88年冬季奥运会的滑雪场，来福请大家猜一猜工人们在干什么？

<a data-flickr-embed="true"  href="https://www.flickr.com/photos/87959954@N07/21778900243/in/dateposted-public/" title="IMG_1925"><img src="https://farm6.staticflickr.com/5720/21778900243_a427b69f01_z.jpg" width="480" height="640" alt="IMG_1925"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>