mother patch

• 母斑

mother patch的用法和样例：

例句

1. Speckled lentiginous nevus is characterized by a tan or light brown background patch on which more darkly pigmented macules or papules are randomly distributed.
   摘要斑点状小痣样母斑，其特徵是许多颜色较深的斑点或丘疹散布在一块褐色或淡棕色的斑块上。