1·Once you have identified the key ideas you are in a position to take some brief notes or jottings.
一旦你确定了主要思路，你就有能力做一些简短的笔记或随笔。
2·The jottings in Ancient China are formed in the time of Wei and Jin Dynasty. Its source can be traced back to the prose of early Qin Dynasty.
中国古代随笔的形成时间大致在魏晋时期，其源头则远溯至先秦诸子之文。