Kowtowing and bumping into the brain: It describes that there are many people jostling with each other, or there are many things that hit the wall everywhere.

Rack one's brains: rack one's brains.

Thick hair: describes the reckless or anxious appearance of young people.

Looking dignified and strong: describe the strong and simple appearance.

Monkey head and monkey brain: as active as a monkey. Describe impetuous action.

Get carried away: I'm hot-headed because of my victory. I can't always think calmly and act cautiously.

Stubborn brain: describes the appearance of stiff speech and action. More refers to the way of speaking that does not follow the routine and goes straight.

Idiot: described as confused and stupid.

Needle and thread brain: sewing needle and thread, etc. Metaphor is a subtle thing.

Stupid: stupid: stupid. Describe as not smart and slow-witted.

Painful brain pull: describe sadness to the extreme.

Stupid: refers to people who are not smart and can't turn their brains around.

Small head and cerebellum: no knowledge

Shrink your head: look carefully and timidly.