blotch

斑块、红斑、疹块多指皮肤

Red blotches appeared on her neck after she ate the shrimp.

她吃了虾之后，脖子上冒出一片片红斑。

污斑、斑点、污渍

There was a dark blotch of ink on the last page.

最后一页上有一块深色的墨水污斑。

使布满斑点、弄脏常用被动

The old wall was blotched with damp and mold.

那面旧墙布满了潮气和霉斑。