| 单词 | system 9 |
| 释义 | System 9System 9An upgrade of the Macintosh operating system introduced in 1999. System 9 added more native PowerPC routines in the Toolbox and provided tighter integration with Sherlock. See macOS. |
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英语词典包含2567994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。