n.廣播完畢的信號

I'm tired of the sound of your voice, sign off quickly. 我討厭聽你的聲音，快別講了。

After ten year, I at last decided to sign off and go into business by myself. 十年后，我終于決定退出該公司，自己去做生意。

I'd better sign off now. Love John. 我得就此停筆。愛你的約翰。

I've written too much and had better sign off. 我已寫得太多，還是就此結(jié)束吧。

I' d better sign off now. Love John. 我得就此停筆。愛你的約翰。

Are you sure you want to sign off all accounts? 您是否確定注銷所有賬號?