例如，在消息列表中，每一个条目旁边都置有一个delete按钮。
In the list of messages, for example, a delete button was placed next to each entry.
您可以这样来设置这个域中的顺序，要么首先选择要在列表中显示在开头的域，然后选择要显示在第二位置的域，依此类推，或者当您拖拽并放置这个域位置时进行位置设定。
You can set the order of the fields either by selecting the first field that you want displayed in the list, and then the next, and so on, or by setting the position as you drag and place the fields.
如果信号量不可用，它将被置为睡眠状态；如果向它传递了一个致命信号，则会将它从等待者列表中删除，并且需要响应此信号。
If the semaphore is not available, it's put to sleep; if a fatal signal is delivered to it, it would be removed from the waiters' list and would have to respond to the signal.
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