請教大家一下，該如何看待這一個句子的結構？
The modularization of XHTML refers to the task of specifying well-defined
sets of XHTML elements that can be combined and extended by document authors,
document type architects, other XML standards specifications, and application
and product designers to make it economically feasible for content developers
to deliver content on a greater number and diversity of platforms.
麻煩有空的人幫個忙，謝謝。
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