optionally available

基本解释

The PC8 supports Windows XP: Linux is optionally available.
PC8支持Windows XP操作系統，Linux操作系統是可選項。
www.etiri.com.cn
The tall cabinet, stool and mirrors are optionally available with the La Rose décor in the form of a flower tendril.
高大的內閣，糞便和鏡子可供用戶選擇的香格裡拉玫瑰的花蔓的形式裝飾。
blog.china.alibaba.com
A two- or four-way 375 or 450MHz system is optionally available with 8MB of L2 cache per processor, offering still greater performance for many applications.
兩年或4路375或450MHz系統可供用戶選擇的8MB二級緩存，每個処理器，提供更大的性能，許多應用程序。
blog.sina.com.cn

The system is optionally available on the LEAF S, which in standard form will utilize a 3.6 kW onboard charger.
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The optionally available BRABUS limited-slip differential optimizes traction.
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