paper titles

• 文章标题

paper titles的用法和样例：

例句

1. Blue is extremely common for headlines, article titles and links.
   蓝是极为常见的头条新闻，文章标题和链接。
2. Quotation marks are also expected for titles of articles, but for titles of books, they should appear in italics.
   引号可以出现在文章标题里，但是对于书籍的标题，他们应当表现为斜体字。