white portion

• 白色区域

white portion的用法和样例：

例句

1. The central white area is very hard and gritty, because the neoplasm is producing a desmoplastic reaction with lots of collagen.This is often called a "scirrhous" appearance.
   因为大量胶原纤维的形成，使中央白色区域非常坚硬并有硬粒感，称之为硬癌。