formatting paragraphs

• 格式化段落

formatting paragraphs的用法和样例：

例句

1. Input the topic sentences for body paragraphs.
   为正文段落输入段首句。
2. I've flagged the paragraphs that we need to look at in more detail.
   我已用特殊记号标出我们需要更详细考虑的段落。