It's still not fully clear what caused an oceanfront condo tower in Surfside, Florida, to partially collapse, sending some units in the 12-story building plummeting to the ground.
원문출처 : https://www.cnn.com/2021/06/25/us/pancake-collapse-explainer-trnd/index.html
원문출처 : https://www.cnn.com/2021/06/25/us/pancake-collapse-explainer-trnd/index.html