The idiom is hard to guess, there is a piece of wood, and a person is nailing. The answer is

perspicacious

rù mù sān fēn

According to legend, Wang Xizhi wrote on the board, and when carving, he found that the handwriting penetrated into the board for three minutes. Describe that calligraphy is very powerful. Nowadays, the problem of metaphor analysis is very profound.

Zhang Tang Huai Guan's book Breaking Wang Xizhi Source: "Wang Xizhi's book is willing to be published, and the work is cut, and the pen is three points."

The structure is formal.

Usage is as a compliment. Praise others or make profound comments. Generally used as predicate, attribute, adverbial and complement.

Positive sound three; It can't be pronounced "shān".

The form of distinction is; Can't write "people"

Synonyms penetrate the back of paper and iron-coated silver hooks

The antonym is a bit obvious

Some essays by Lu Xun vividly exposed the ugly faces of Kuomintang reactionaries.