sign off

参见：signoff

英语

sign off (复数 sign offs)

(广播) 关闭广播电台或电视台的摄影棚病停止广播讯号
Sign off for the small-town radio station was at midnight.
小镇广播站停止广播是在午夜。

sign off (第三人称单数简单现在时 signs off，现在分词 signing off，一般过去时及过去分词 signed off)

(俗语) 登出；下线；完毕（停止使用电脑、对讲机等，尤其指停止说话）
He finished the conversation and signed off.
他结束了谈话并退出。
(广播) 结束广播，停止发送广播、电视讯号（如放一小段音乐）
Before he signed off the radio station for the night, the disc jockey played the National Anthem.
在他结束当晚电台的广播之前，唱片骑师播放了国歌。
(后接 on) 批准，给予正式认可
Once the vice-president signs off on the project, we can start construction.
一旦副总统批准了这个项目，我们就可以开始施工了。
- 2023年8月23日, “Network News: Hold-up for Cliff Railway reopening”, 出自 RAIL, 第 990 期，第 14 页:
  The town council, which closed the funicular last December for health and safety reasons, has yet to sign off the completion of £72,000 worth of remedial works to a retaining wall.
  （请为本引文添加中文翻译）