私が世界のためにできること what I can do for a better worldカテゴリー春大会出品日2015.07.01出品者JOYJOYJOYチーム名/個人名JOYJOYJOY学部e-Presen Contest 2015学科春大会出品作説明4How to make the world a better place? This is a hard question. And I think about it carefully. Here are my answers. リスト
