那一年我们哭着分别这一年我们笑着问好
[nèi yī nián wŏ men kū zhe fēn bié zhè yī nián wŏ men xiào zhe wèn hăo]
The username reflects on past emotions and experiences: it contrasts a tearful farewell with a smiling greeting in later years, implying that the passage of time can change relationships from deep emotion to casual greetings.