As a clerk at a university post office,I was greeting patrons with a "Hello"or "Good morning".When a Spanish exchange student approached the counter，I happened to say,"How's it going?"
作为一个大学邮局里的职员，我总是对那些光顾者这样打招呼“你好”或“早上好”。当一位西班牙的交换学者来到我的柜台时，我偶然这样招呼了一句"How is it going?"

Laying his foreign mail in front of rne，he replied,"Airmail."
他把要寄往外国的邮件放在我面前说:“寄航空。”