In optical character recognition, a combination of peaks and smudges that may close or partially close a loop of a character thus making it unreadable. 在光学字符识别(OCR)中,亮点和黑点的一种组合,可能封闭或部分封闭字符的环形部分,因此使其无法读出。
Wash your hands or you'll make smudges on the writing paper. 把手洗乾净,别把写字的纸弄脏了。