hit the nail on the head
The pronunciation is s ā OD à oy ǎ ngch ù.
It is originated from the poem "reading Han Du Ji" written by Du Mu of Tang Dynasty: "when Du's poem is read by Han Ji, it's like Qian Magu's itching."
Chinese PinYin : sāo dào yǎng chù
hit the nail on the head
sweep through the length and breadth of the territory. zòng héng chí chěng