Since the dialog makes sense only when there's a message for it, the program sets the "no dialog" flag when the message is empty.

因为对话只在它有消息时才有意义，所以程序在消息为空时会设置“无对话”标记。

youdao

However, across the border in Wales, the red dragon which appears on the Welsh flag is a positive symbol, indicating strength and a sense of national identity.

但是，在威尔士，出现在威尔士国旗上那条红色的龙，确实正面的象征，它代表着力量和民族感。

youdao

As Scots increasingly clutched the saltire, urging a political response to their sense of Scottish identity, the Tories were brandishing the Union Flag and disowning devolution.

BBC: Line in the sand no more