It’s getting late, so I’ll sign off now. Love, John.
时间不早了,就此笔。爱你的约翰。
c)sign somebody offBritish EnglishBrE if a doctorsigns someone off, he or she gives them a note saying that they are ill and not able to work 〔医生〕给某人开病假条
For the last month, she has been signed off sick from work.
上个月她请了一个月病假,没有上班。
d)sign something ↔ offBritish EnglishBrE, sign off on something American English to show that you approve of a plan or that something is finished by signing an official document 签字认可某事;签字确认某事结束
Major repainting work now needs to be signed off by a qualified engineer.