使用简短词语、句子、段落、项目符号。页面不要太长。
Use short words, short sentences, short paragraphs, bulleted lists, and short pages.
下面段落将会介绍用于序列图的比较高阶的符号元件。
The following section will cover more advanced notation elements that can be used in a sequence diagram.
当然，文本文件没有丰富的样式属性也不行，如文本字体、段落布局、项目符号。
Certainly, a text file cannot do without rich style attributes, such as text fonts, paragraph layout, and bullets. Therefore, ODFDOM has a method to deal with these style attributes.
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