This step ensures that even an empty element (one with no existing text node) is updated.
这一步确保即使是空元素(即不具有现有文本节点的元素),也进行更新。
If text is omitted and there is no existing text value to replace, the update command fails.
如果省略了text且不存在要替换的现有文本值,更新命令就会失败。
The question marks (?) in the expression are replaced with the existing text value of the target node.
表达式中的问号(?)将由目标节点的现有文本值替换。
Erin Jansen,founder of Netlingo, an online dictionary of Internet and text messaging terms, also says the new technology has not fundamentally changed existing language but added immensely to the vocabulary.
VOA: standard.2010.01.16
It is an aspect of a text, the way in which it does communicate in other words, which has to be understood as existing in a dynamic, functional relationship with those aspects of the text in which literariness is dominant.
它是文本的一部分,它有生动的,交际功能,但是从文学根本上来说,但诗化语言支配着它。
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