双壁作垄犁
双壁开沟犁体
Tom Chaney rode his gray horse that was better suited to pulling a middlebuster than carrying a rider.
NPR: Excerpt: 'True Grit'
middlebuster:
From middle +? buster.
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。