A1 used to show that you are listening to someone, or that you are ready to listen and to give them

中文解释

（用于表示正在听某人说话，或准备听并作出回答或提供信息） \"Dad.\" \"Yes, what do you want, honey?\" “爸爸。”“怎么了，你想要什么，宝贝儿？”