如果您必须使用后代选择器，尽量使用子代选择器，这最少只需评估一个额外的节点，而非中间直至祖先的所有节点。
If you must use descendant selectors, prefer child selectors, which at least only require evaluation of one additional node, not all the intermediate nodes up to an ancestor.
如果使用端点的上下文菜单导航到这里，现在必须选择要安装的子代理(第2步和第3步)。
If you used the context menu of an endpoint to navigate here, you have to select the sub-agent to install now (Steps 2 and 3).
在许多拥有较长幼年期的物种中，雌性选择让雄性孵化后代来增加雄性对子代的感情投入。
In many species with long childhoods, female choice bred males to evolve increasing emotional investment in their offspring.
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