n.回转，脑回,回转，脑回( gyrus的名词复数 )
The surface of cerebrum is increased by many gyri.
大脑表面由脑回的增多而增大.
The gyri are narrowed and the sulci widened toward to frontal pole.
脑回变窄,脑沟向着前端变宽.
A coronal section through the frontal lobes reveals extensive contusions involving the inferior gyri.
额叶冠状面显示累及下方脑回的广泛挫伤.