英语词汇“trackball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	trackball
释义	trackball /trak"bawl'/, n. a computer input device for controlling the pointer on a display screen by rotating a ball set inside a case. [1975-1980]
随便看	planned economy planned obsolescence Planned Parenthood planner planning plano Plano plano- planoblast plano-concave plano-convex planogamete planograph planography planometer planospore plan position indicator plansheer plant Plantae Plantagenet planta genista plantain plantain-eater plantain lily

英语词典包含168451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。