n.<美><口>(精神或感情上的)烦恼;焦虑;困难;问题;
例句:
Ann's mother gets after her to hang up her clothes.
安的妈妈盯著她,要她把衣服挂好.
After ending, press phone function phone to hang up.
通完话后, 按一下电话功能键即可挂机.
I say put down the phone. You hang up.
我说放下电话. 你(把电话)挂起来.