| 单词 | ball bearing | 
| 释义 | ball bearingnoun  : a bearing in which the journal turns upon loose hardened steel balls that roll easily in a race    also : one of the balls in such a bearing  | 
| 随便看 | 
 | 
英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。