But learning so much of it in such a short time, that's a big scramble -- and they have to know it from memory."

VOA: special.2011.07.11

Let's assume that the user typed in a pretty short word we didn't run out of memory or anything crazy so here's the new feature.

假设用户输入,很短的单词，没有出现超出内存之类的问题,这里是新的特点。

哈佛公开课 - 计算机科学课程节选