Can walnuts caught in the door still nourish the brain? What do you mean?

Walnuts are originally brain-nourishing, and walnuts caught in the door can certainly brain-nourishing.

It is emphasized here that the walnut was caught in the door and its meaning changed.

Walnuts used to replenish the brain indicate that walnuts have been damaged by door clips. When used to replenish the brain, the brain is also damaged. After the repair, it is equivalent to the IQ problem after the head is caught in the door clamp.