log-off

基本解释

Ok, I need to log-off so I can go watch the Olympics now.
好吧，现在我要退出系统去看奥运了。
CA authentication system is a integrating system, which includes applying, examing, signing and issuing, log-off, updating, inquiry of digital certificate.
CA认证系统用于数字证书的申请、审核、签发、注销、更新、查询的综合管理系统。
I was in the chat room and about to log-off when a private message flashed on my screen. He was in his early 30s (or so he claimed) and lived in an older neighborhood far from campus.
我刚刚准备从聊天室下线的时候，屏幕上闪出一条私信——那个男人30出头（或者说他自称30出头），住在远离我们学校的老城区。

Do you really want to engage in a major political battle over whether the auto log-off should be 90 minutes instead of 30?
FORBES: What Sarbanes-Oxley, Lawyers and Auditors Really Mean for IT
The going for a fissile-material cut-off treaty at the log-jammed Conference on Disarmament could be harder still.
ECONOMIST: Nuclear disarmament

When someone who is using a computer system logs out or logs off, they finish using the system by typing a particular command.