While rereading, do some kind of pencil-work in which you jot down selected facts, together with formulas or equations.
复习时，你要做好摘记，即记下你要摘选的要点，连同公式或方程序。
I took some paper and a pencil, picked a desk, and went to work.
我拿了一些纸和一支铅笔，挑了一张桌子，就去工作了。
If your walls are in good condition then this work could be done with the help of a stencil and pencil.
如果你的墙壁还不错的话，我们用蜡笔或者铅笔就能完成上述工作。
应用推荐