sign off

英 [ˈsaɪn ɒf]

美 [ˈsaɪn ɔːf]

（在信的结尾）写结束语; （挂电话、广播节目结束时）就说到这儿，到此为止; 注销（领取失业救济金的）登记

柯林斯词典

PHRASAL VERB (在信的结尾)写结束语;(挂电话、广播节目结束时)就说到这，到此为止
If someonesigns off, they write a final message at the end of a letter or they say a final message at the end of a telephone conversation. You can say that people such as entertainerssign offwhen they finish a broadcast.
1. O.K. I'll sign off. We'll talk at the beginning of the week...
  好，就说到这儿吧，下周初我们再谈。
2. He would sign off each week with the catch-phrase, 'I'll see thee!'
  每周结束节目时他都会说那句经典的话，“下周见！”。
PHRASAL VERB 注销(领取失业救济金的)登记
When someone who has been unemployedsigns off, they officially inform the authorities that they have found a job, so that they no longer receive money from the government.
1. If you work without signing off the dole you are breaking the law.
  如果就业后未注销领取失业救济金的登记视为触犯法律。

verb

I sign off on any new spokesperson.
由我来选任何一名新的发言人。
I'm tired of the sound of your voice, sign off quickly.
我讨厌听你的声音，快别讲了。
I would be grateful if you can sign off today.
如果你今天你能够批准，我将感激。
You'd better sign off now or you'll miss the collection of the post.
你最好现在就将信收尾，不然会错过邮递员的收信时间。
However, I fear you may have a bigger problem than how to sign off your reply.
但是，我担心你还有一个比不知回信如何落款更严重的问题。
O.K. I'll sign off. We'll talk at the beginning of the week
好，就说到这儿吧，下周初我们再谈。
It was hard to get celebrities to sign off on those issues.
很难得到名流对这些问题的认同。
I'd like you to sign off on the paperwork.
需要你在这些文件上签字。
Imagine Germany, the Netherlands or Finland were asked to sign off on a eurobond tomorrow.
设想一下，假如明天就要求德国、荷兰或芬兰签字批准欧元区债券。
Before I sign off, I encourage you to pray without ceasing for your children.
收笔以先，我鼓励你不间断的为你的孩子祈祷。