微笑着说离开
[wēi xiào zhe shuō lí kāi]
This screen name 'Smiling and Leaving' expresses a feeling of wanting to show strength or indifference in the face of departure or loss. Even if someone is sad about leaving, they try to smile to conceal their real feelings, suggesting a certain level of maturity and emotional independence, not wanting others to worry or think they're unable to move forward on their own.