sign out的意思？

sign out的音标：sign out的英式发音音标为：[sain aut]sign out的美式发音音标为：[saɪn aʊt]...

I'm so sorry, but you should have a sign out there or something.实在对不起, 可你们应该在那儿或者什么地方写明白.Based on the Photos , how would you sign out the case?基于这些图片; 您如何签发这个病案.Most of the students in our class sign out on Friday.我...