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Note that the special value -0, as used in Listing 4 above, tests whether a signal could be sent to a process.

注意特殊值- 0，正如清单4中的用法一样，它将测试是否可以将某个信号发送到进程。

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So, a "normal" variable (as in the examples above) is just a special case-a sequence with only one value in it.

因此，“普通”变量(如上例所示)仅仅是特殊情况—即仅包含一个值的序列。

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The United Nations cultural organization UNESCO named it a World Heritage Site in 1998 - a designation for places of special physical or cultural value.

VOA: standard.2010.08.05

So it does that for us so that you can get away with just knowing the address of the first byte and it will make sure that you know when to stop by including the special value so, in fact, get the string if you type in a three-letter word, we allocate four bytes no matter what because we need an additional byte 0 for this special sentinel value back slash zero at the very end.

它为我们做了这些事情，这样我们就可以,通过第一个字节的地址,它还可以通过包含一个特殊的值,来保证在哪里停止，如果你输入了一个三个字母的单词,就可以获得那个字符串，不管怎样，我们分配四个字节,因为我们在末端需要一个额外的字节,来保存这个特殊的标志值--反斜杠。

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The approach may also have special value in developing nations, where access to electricity is limited and sewage treatment at remote sites is difficult or impossible as a result.

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