Many orphaned links are a sign of webmaster neglect.

许多失效的链接是一个站长疏忽大意的表现。

If it's in Webmaster Tools, what site were you managing?

如果和网站站长工具有关，那么你在管理哪个网站？

To remove crawl errors from your Webmaster Tools account.

从你的网站管理员工具账户中删除抓取错误。

A big argument about it started up on a webmaster board.

于是在网站留言板上开始了一场大论战。

Detecting and removing invalid URLs using Google WebMaster tools.

使用Google网站管理员工具检测并移除无效链接。