You can for instance create a full layer content or update only text in a specific tag.

例如，你可以创建完整的层级内容或是只更新某特殊标签内的文本。

youdao

The first query returns the full element node, i.e. 29, while the second query only returns its text node value 29.

第一个查询将返回完整的元素节点，即29，而第二个查询仅返回其文本节点值29。

youdao

If a full sample of data has not been read, only the most recent text is printed to the screen.

如果尚未读取完整的数据样例，则只会把最新文本输出到屏幕上。

youdao

The iPad was clearly a more versatile device: it would provide color and full audio and video, while the Kindle could display only black-and-white text.

NEWYORKER: Publish or Perish