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 ...

Siegler divided children's strategies into two kinds, which are retrieval strategies and backup strategies. He advanced the ...