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	Word Frequency trackball (ˈtrækˌbɔːl) or trackerball (ˈtrækəˌbɔːl) noun computing a device consisting of a small ball, mounted in a cup, which can be rotated to move the cursor around the screen
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