optionally available

基本解释

The PC8 supports Windows XP: Linux is optionally available.
PC8支持Windows XP操作系统，Linux操作系统是可选项。
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.
高大的内阁，粪便和镜子可供用户选择的香格里拉玫瑰的花蔓的形式装饰。
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.
两年或4路375或450MHz系统可供用户选择的8MB二级缓存，每个处理器，提供更大的性能，许多应用程序。
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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