Is Zhang Fei's threading a needle a eight-character idiom, coarse and fine?

"Zhang Fei goes through the needle-there are details in the rough" is not a eight-character idiom, but a two-part allegorical saying, but "there are details in the rough" is an idiom.

Usually careless

Zhangzhidong

Explanations describe people as seemingly rude and casual, but in fact they are cautious.

The source is Wu Ming The Journey to the West's fifty-fifth reply: "Friar Sand laughed and said,' Good! All right! All right! It's just that there are details in the rough, and it's really urgent to ask for leniency. " "

Structural contraction type

Nervous use; As predicate and attribute; Describing surface roughness is actually very detailed.

Antonym carelessness

For example, Zhang Fei in Romance of the Three Kingdoms is a general.