十天很短你们久留十年很久你们别走
[shí tiān hĕn duăn nĭ men jiŭ liú shí nián hĕn jiŭ nĭ men bié zŏu]
This username contrasts two time frames. 'Ten days are short, you stay for a long time; ten years are long, please don't go away'. It implies the hope that someone can remain by your side regardless of the passing of time, reflecting an intense and timeless desire to hold onto precious friendships or love.