空白的括号对代表空的列表。

An empty list evaluates to an empty list.

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缺省情况下，将返回一个空的列表，这表明没有子对象。

By default, an empty list would have been returned, which indicates no children.

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返回到清单3 ，您可以看到您也有一个空的无序列表。

Returning to Listing 3, you can see that you also have an empty, unordered list.

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可以看到中介处理程序的空列表。

You'll see an empty list of mediation handlers.

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空列表被认为是升序的。

An empty list is considered ascending.

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第一个if 语句在列表为空的情况下中断递归，返回零值。

The first if statement breaks the recursion if the list is empty, returning zero.

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如果列表是空的，那么返回False。

If the list is empty, then return False.

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不过它确实允许一个空的nil列表。

It does allow an empty Nil list, however.

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(不过它确实允许一个空的nil列表。)

(It does allow an empty Nil list, however.)

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最初时，数据库是空的，从而在我们的列表中不会显示任何任务。

Initially, the database will be empty and thus no tasks will appear on our list.

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您将看到资源引用的一个列表，这个列表可能会是空的。

You will see a list of resource references, which may be empty.

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如果列表原来是空的，就调用pthread_cond_broadcast以宣告列表中已经添加了数据。

If the list were originally empty, you call pthread_cond_broadcast to post push data into the list.

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属性列表是空的。

The attribute list is empty.

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如果您从未建立过折扣优惠，您的折扣列表将显示为空。

If you've never created an offer before, your list of offers will be empty.

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如果您从未建立过折扣优惠，您的折扣列表将显示为空。

If you've never created an offer before, your list of offers will be empty.

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