YouTube star MrBeast wanted to do something big to celebrate reaching 20 million subscribers, so his fans challenged him to plant 20 million trees.
원문출처 : https://www.cnn.com/2019/10/30/us/youtube-mrbeast-trees-trnd/index.html
원문출처 : https://www.cnn.com/2019/10/30/us/youtube-mrbeast-trees-trnd/index.html