这是可选项目的一个详细情况。
一些可选项目，我发现有用的内容如下。
第十一步：调整星光柔化效果的颜色(可选项目)。
Step 11: Alter the color of the Star Diffusion effect (optional).
方括号(“[”和“]”)包括的表达式表示一些可选项目，是否需要取决于前面的选择。
The expressions surrounded by brackets (" [" and "] ") represent optional items that may be required depending on the previous choices.
这一通过蜜蜂自己选择最佳地点的决策过程非常可靠，即便是在两个可选项目差别很小的情况下。
The decision is remarkably reliable, with the bees choosing the best site even when there are only small differences between two alternatives.
虽然XML是一种定义新文件格式的强大的表示工具，但仍然无法解决可选项目范围狭窄问题。
While XML is a powerful and expressive tool for defining new file formats, it cannot save you from a poor choice of project scope.
在前进的路上也许很难达成一致，可是这些NSF的项目应该对提供一组可选项颇有助益。
It may be difficult to reach a consensus about the way forward, but these NSF projects should be helpful in providing a number of options.
建模项目中不同的参与者有时无法就哪种数据相关性最强、哪种数据可被视为可选项达成一致，这使事态更趋复杂。
To further complicate matters, different stakeholders in the modeling project sometimes disagree on which data is the most relevant and which data can be considered optional.
gcc编译器套件已被广为应用，大部分项目完全可以假定它为很多目标平台的一个可选项。
The GCC compiler suite is sufficiently widely available that most projects can reasonably assume that it will be an option on a broad variety of target platforms.
gcc编译器套件已被广为应用，大部分项目完全可以假定它为很多目标平台的一个可选项。
The GCC compiler suite is sufficiently widely available that most projects can reasonably assume that it will be an option on a broad variety of target platforms.
应用推荐