深知他是你的命
[shēn zhī tā shì nĭ de mìng]
This screen name '深知他是你的命' can be translated as 'Knowing Deeply He Is Your Life'. In Chinese internet culture, it expresses an unwavering love or attachment to someone, suggesting that this person is the center of one's life and without whom one cannot live. It conveys a profound sense of dependency and devotion.