1. 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。
2. 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。
3. His face was covered in ugly red blotch es. 他脸上有许多难看的红色大斑点。
4. His skin was covered with unsightly blotch es. 他皮肤上长满了难看的疹块。
5. This blotch may become faint in larger species. 此斑可能变得更大的物种微弱。
