China Daily Global | Updated: 2021-07-13 09:58 Share CLOSE SALIMA, Malawi－Under the hot sun, dozens of women danced and sang in jubilation as children from Salima village in central Malawi started their first day at their new 3D-printed school, which had been built from ground up in only 15 hours. Made of concrete placed layer by layer through a computer-controlled nozzle, the school is made up of a single room with rounded corners and is big enough to accommodate 50 students. Olipa Elisa's 10-year-old son used to hike 5 kilometers every day to the nearest school, often arriving late and exhausted. "I am very excited that we now have a school closer to my home, and my child will not have to take the long journey," said the 38-year-old woman. "What we need is more of these learning blocks to accommodate other classes."