例如，目录销售和交叉销售、促销及广告几乎是每个品牌特有的。
For example, catalog upsells and cross-sells, promotions, and advertising are most likely unique to each brand.
我们已经将画布清理干净（将画布的背景色设置为“白色”），并且当鼠标移至画布时，光标变为交叉（在 X11 中有 78种标准的鼠标光标形状，其名称可以在头文件 cursorfont.h 中找到，典型安装时，这个头文件可以在/usr/X11/include/X11/ 目录中找到。）
There are 78 standard mouse cursor shapes in X11, the names of which can be found in the header file cursorfont.h, which in a typical installation can be found in the /usr/X11/include/X11/ directory.
为了减少这种方式的不便，我已经在全文中进行交叉的自由贯穿引用，并且在书后提供了一个易理解的目录。
To minimize the inconvenience of this approach, I have sprinkled cross-references liberally throughout the text, and a comprehensive index is provided at the end of the book.
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