您可以不机没有用过的项目隐藏起来以便保持通知部分不乱。

You can keep the notification area uncluttered by hiding items that you have not clicked recently.

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注： 这些选项不是必需的。您可以不选、选其中一个或全选。

Note: These are completely optional. You may have neither, one, or both selected.

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为了安全，您可以不填密码，安装程序以后会提示您填入密码。

For maximum security, you may leave the password blank, and Setup will prompt you later for the password.

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And so do we want to say, do you want to argue that is just one instance of one of these bubbles, one of these manias take place even in free market.

那么您是否可以这么说,这只是众多泡沫，或者众多不规范行为中的一项,自由市场经济也不是万能的。

斯坦福公开课 - 经济学课程节选