我只是你生命中的一个过客
[wŏ zhĭ shì nĭ shēng mìng zhōng de yī gè guò kè]
Expressing modesty and transient feelings about being just one among many people who come and go through another person's life. There's an element of impermanence here that suggests not wanting to impose, linger or overly involve oneself in someone else’s existence too much - it also evokes some sadness and transitory nature inherent in human relationships