Downstage personnel has not answered the reporter's query.

前台人员已经不回答记者的提问。

Can anybody tell me what the difference between upstage and downstage is?

谁能告诉我后台跟前台的差别?

Want to build reasonable clear website structure, make tourist and search spider OK read your website smoothly all and downstage page.

要建设合理的清楚的网站结构，让游客和搜索蜘蛛都可以顺利地阅读你网站所有前台页面。