Practice intensely,
3. 集中練習。
without interruption for short periods of no longer than 90 minutes and then take a break.Ninety minutes appears to be the maximum amount of time that we can bring the highest level of focus to any given activity. The evidence is equally strong that great performers practice no more than 4 ½ hours a day.
持續無間斷的不超過90分鐘的短周期練習,然后再休息。90分鐘是我們能高度集中于一個特定活動的最持久的時間。大量證據表明優秀的執行者每天的練習不超過四個半小時。