If you want to keep enjoying apples, melons and blueberries, bees need to be healthy and cared for.
원문출처 : https://www.cnn.com/2020/06/17/world/soap-bubble-robotic-pollination-study-scn/index.html
원문출처 : https://www.cnn.com/2020/06/17/world/soap-bubble-robotic-pollination-study-scn/index.html