Displays or returns the date of a post, or a setofposts if published on the same day.
如果文章都是以同样的方式发表的，显示或者返回一篇文章或者一组文章的发表日期。
2
The sample being analyzed could be a collection of scientific papers or a setofposts from certain blogs.
一篇文章可能被分为科技论文或博客文章。
3
For protection from the summer sun, the Mojave lived in open-sided, flat-topped dwellings known as shades, each a roof of poles and arrow weed supported by postsset in a rectangle.