曾几何时尝试着淡忘所有
[céng jĭ hé shí cháng shì zhe dàn wàng suŏ yŏu]
The phrase roughly means “at some point I tried to let go of everything”. It could suggest a user’s intention or effort in the past to move on from memories or experiences they once held onto, emphasizing a journey toward emotional distance or release.