a pen whose writing tip is a small movable ball
a ball manipulated with the fingers to move the cursor around a computer screen
| 单词 | rollerball |
| 释义 | rollerballnouna pen whose writing tip is a small movable ball a ball manipulated with the fingers to move the cursor around a computer screen |
| 随便看 |
英语词典包含66266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。