attack the enemy at his weak points
The pronunciation of "P ī h á NGD ǎ ox ū" refers to seizing the key point and attacking its emptiness, which comes from "three battles Lu Bu" by Zheng Guangzu of Yuan Dynasty.
explain
Criticize: hit by hand; pound: attack; void: emptiness. It is a metaphor for seizing the enemy's vital position and taking advantage of the weakness to enter. It also refers to drilling when there is a crack to make profit from. It's the same as "criticizing the strong and attacking the weak".
source
The first fold of Zheng Guangzu's three battles Lu Bu in Yuan Dynasty: "all marshals need to be resourceful, criticize and criticize, lie for the first time, and be naughty."
Examples
His family name is chaomingpi, and his name is Polygonum. He came from a greasy mouth. He used to be idle and lazy. Ming Dynasty: Wumingshi's pomegranate garden
usage
It refers to grasping the key and attacking its emptiness.
attack the enemy at his weak points
i was putting on my clothes upside down - diān dǎo yī cháng
roll up one 's sleeves and raise one 's fists to fight - xuān quán luǒ xiù