另一个常听到的表达是 build from scratch，意思和前者几乎一样。 例句 Let's start from scratch and see how quickly we can get the food on the table. 让我们从零开始做起，看看我们几时能把菜做好端上桌子。 After their proposal was rejected, the team ...

在青少年编程教育领域，传统的在线考试系统正面临技术降维打击。当老师们还在为 Scratch ...