Technology has never been more advanced, yet children across the United States are entertaining themselves with something very old-school: partially-filled plastic water bottles.
원문출처 : http://www.cnn.com/2016/10/24/health/bottle-flipping-new-craze-for-kids-trnd/index.html
원문출처 : http://www.cnn.com/2016/10/24/health/bottle-flipping-new-craze-for-kids-trnd/index.html