blotch
n. 斑点;污点;疙瘩
vt. 弄脏
例句
You only knew the town was there, because you knew there could have been no such blotch upon the view without a town.
你只知道城镇就在那儿,因为你知道,如果城镇不存在,风景上就不会有这样的污点。
The sooty blotch will wipe off of the fruit and fly speck will not.
煤烟斑将其擦去,而蝇斑则不会。
This blotch may become faint in larger species.
此斑可能变得更大的物种微弱。