the ending of a letter or broadcast 签字: 信件或广播的结尾He ended each broadcast with his trademark sign-off. 他以他标志性的签名结束了每一次广播。
- sign-off (on something)
formal approval that somebody has given to something by signing their name 签署: 正式批准某人通过签署其名字给予某物We still need the CEO's sign-off on the report. 我们仍然需要首席执行官在报告上签字。