日常打招呼或道别时用语。等同于Hello，Good morning, Good afternoon, Good evening和Goodbye（a phrase used during the day as a greeting or farewell）。

1.Well,I'dbetterbeoff.Gooddaytoyou.

好啦，我得走了，再见。

2.Todayisagoodday,therainstopped;

今天是个好日子，大雨停了