cut away in small pieces
同义词：whittle away??/??whittle down
diminish, as by friction
同义词：wear off
become ground down or deteriorate
同义词：erode??/??gnaw??/??gnaw at??/??eat at
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。