Again, you shouldn't change this unless you need to change the behavior of the tree navigation and have a full understanding of the layout.

此外，除非您需要更改树导航的行为，并且对布局有充分的理解，否则不应该对此进行更改。

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The fallback scheme permits a single viewer to handle all rule result rendering, yet allows alternate viewers to be attached anywhere in the tree to override the default behavior.

退回方案允许单个检查器，去处理所有呈递的规则结果，并允许不同的检查器联系树状图的任何地方，以替换默认的行为。

youdao

It optionally allows you to completely replace a control's visual tree with anything you want - while still keeping the control behavior intact.

它还允许你用你想要的任何东西完全替换控件的视觉树(visual tree)，同时还保持控件的同样行为。

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Dr. Samuel Putnam , an assistant professor of psychology at Bowdoin College in Maine, says thrill seeking behavior is mostly genetic, and that signs of it--from climbing the highest tree to swinging as high as possible on a swing set--can be recognized from very early ages.

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