Two examples are the accessibility content explaining the alternate keys and the conference agenda page.

例如，对快捷键进行解释的可访问性内容和研讨会议程页面。

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A container can either support strings as its keys, like the root object itself, or can use integers as an alternate key system instead.

容器可以支持将字符串作为其键值，就像根对象本身一样，或者可以使用整数作为备选键值系统。

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Simply hold down the space bar when you want to switch to the keys on the alternate side of the keyboard.

当你想要换到键盘另一半上的键时，只要长按空格键就可以了。

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