After a few weeks of coronavirus quarantine, your home and backyard and even your neighborhood may feel a little smaller than it once did -- especially if you have children.
원문출처 : https://www.cnn.com/2020/04/08/world/nasa-space-station-stem-activities-scn/index.html
원문출처 : https://www.cnn.com/2020/04/08/world/nasa-space-station-stem-activities-scn/index.html