| 单词 | trackball |
| 释义 | trackball[ trak-bawl ] / ˈtrækˌbɔl / nouna computer input device for controlling the pointer on a display screen by rotating a ball set inside a case. Origin of trackballFirst recorded in 1975–1980 Words nearby trackballtracing paper, tracing tape, track, trackage, track and field, trackball, track brake, track down, tracker dog, tracker fund, track event Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for trackballtrackball trackerball (ˈtrækəˌbɔːl)/ (ˈtrækˌbɔːl) / nouncomputing a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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