Black holes mess with our concepts of space and time.
黑洞扰乱了我们的时空概念。
剑桥学霸读书分享
Firstly, we're gonna introduce this concept of spaced repetition.
首先,我们要介绍间隔重复的概念。
剑桥学霸读书分享
But thankfully we can combat the forgetting curve by using this concept of spaced repetition, this applies not just to exams, but to any other skill as well.