The original sentence is "Qing 4" (the middle part of the fourth line of the original text), and then the idiom "Go straight to the point" is derived. The original meaning means that a good butcher knows the tendon structure of cattle, kills cattle naturally and skillfully, so that his knife can be used for many years and still be intact. Now refers to the point. Furthermore, the language is accurate and to the point.

Ken, where bones and muscles combine, is a metaphor for the key or the most important key.

The attached original text is as follows:

My skillful hands, shoulders, feet, knees, sword and tenor are all classic first encounters. Wen said, "Hey, good! So far? " My master let go of his knife and said to him, "I am a good minister and I am proficient in technology." When the first minister solved the cow, he saw nothing but the cow; I haven't seen all the cows for three years. At this time, I met God, not with my eyes, but with Zhi Zhi's desire to do things. According to heaven, I criticize the big gap and the big difference. Because its courses, techniques and skills are not bad, but the situation is great. A good man is a better cutter; There are many knives and many folds in the family month. Today, I have killed thousands of cows with my sword for nineteen years, but if the blade is new. There is a gap between people for a while, but the blade is not thick; Without thickness, there is room, and there is room for recovery. 19 years, the blade is new. Although as for the clan, I find it difficult, so I took a warning and stopped watching it. Slow action; The knife is very small, and what should be solved has been solved, such as land. Stand with a knife, look around, aim high, and hide it with a knife. " Wen said, "Good! I listened to my master and I have to stay healthy. "