sign off
فعل- To log off; to stop using a computer, radio, etc.; especially, to stop talking. · He finished the conversation and signed off.
- To cease broadcasting a radio or television signal, usually at the end of a broadcasting day. · Before he signed off the radio station for the night, the disc jockey played the National Anthem.
- to give one's official approval to something for which it is needed, especially by a signature. · Once the vice-president signs off on the project, we can start construction.
- To use a valediction, such as the end of a letter or broadcast.
تعلّم sign off في نصوص حقيقية
مع حساب مجاني، مرّر المؤشر فوق أي كلمة في المكتبة لترى معناها، واستمع إليها مقروءة بصوت عالٍ، واحفظ الكلمات لمراجعتها في مواعيد تناسب ذاكرتك، واعرف مقدار ما تعرفه من كل كتاب.