Semanticscholar 检索结果来自于期刊、学术会议资料或者是学术机构的文献。Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research.
Scratch 作品展示非常丰富,孩子们可以到Scratch官方寻找创意灵感。Scratch is a free programming language and online community where you can create your own interactive stories, games, and animations.
Random Facts 有许多有趣的冷门小知识,学习同时还能练英语。Did you know that Finland is the world's happiest country, according to the 2019 World Happiness Report?