如果还没有过期，是有效的，它允许美国公民前往大多数国家。
If it has not expired and is valid, it allows US citizens to travel to most countries.
严格来说，我们现在并不需要执行这个过程，因为我们刚刚安装了自己的仓库，它应该还没有过期。
Strictly speaking, you don't need to perform this now, as you just installed your repository and it should not be out of date. But it doesn't hurt to check just in case.
然而，该portlet却显示了上一个选择的hot deal的内容，因为它已经被缓存，并且还没有过期。
However, the portlet displays the content for the previous selected hot deal, because it has been cached and has not yet expired.
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