hang up 挂断电话
hang on/hold on 别挂电话

例句：
 

She was angry at her boyfriend and hung up the phone.
她生她男朋友的气，然后挂断了电话。

Don't hang up,please.
请不要挂断电话。

Hang up and I'll call you back in a few minutes.
您先挂了，过几分钟我再打给你。
 

背景音乐：
Dianne Reeves-Jingle Bells