The forgetting curve, discovered by H. Ebbinghaus, a German psychologist, describes the law of human brain forgetting new things. The human brain can describe the forgetting of new things step by step. People can grasp the forgetting law from the forgetting curve and make use of it, so as to improve their self memory ability.(看不懂了吧,赶紧多背点单词！)
Created by @jim.