To give an example, suppose I am practicing Kung Fu on a mountain and you are to be my opponent. The first thing is definitely to analyze your height, weight and strength of arm, which school you are and so on. After three years I can come down and defeat you.
舉個例子：假如我在山上練武功，知道將來的敵人就是你，那我一定開始分析你的身高、體重、臂力、是那一個門派等等，三年之後下山來把你打敗。