The client also reads the Last-Modified response header and sends back the date value in an If-Modified-Since header to ask the server if the resource has changed.

客户端还读取Last - Modified响应Header，并在if - Modified - Since Header中发回日期值，以向服务器询问资源是否已更改。

youdao

Indicates the date when the information in this file or folder was last changed.

指明该文件或文件夹的信息最后更改日期。

youdao

The last thing an introvert wants to hear is that more people are coming, the venue has moved or the date has changed.

内向的人最不想听见的是还有人要来，场所要改变，日期也会有所改变。

youdao

Last month, prosecutors changed the date of the alleged incident to February 2001 from March 2002, citing unspecified findings.

WSJ: Jerry Sandusky Trial Will Hinge on Portrayal of Accusers

Last year, the Department of Education changed the date of its high-school notifications so that students were informed in mid-February about which public schools had accepted them, including the specialized high schools.

WSJ: Admissions Deadline Confusion