SuperMemo与传统学习的差异在于：①顺畅的优先值；②被动复习；③主动复习；④以遗忘指数操控某类元素的召回频率

(2017-09-13-周三 22:03:52)

that of SuperMemo by providing a fluent transition between all priority levels starting from quickreview, to repeated passivereview, to activereview, and to active recall at all levels of the forgetting index down to 3% (i.e. nearly 99% recall rate).