Raven-black eyes and your smiling face.
* 乌溜溜 is a descriptive word for black.
How can I ever forget the changes in your appearance?
*容颜: face (容貌) + beauty (颜值)
How the fleeting past slips away.
* 轻飘飘: descriptive word for lightness; the object is so light, it is floating (like a feather)
Several years have rushed by when I turn my head and look back.
The vast horizons are yours to travel.
* 苍茫茫: vast (adj), 天涯: "heaven cliff", the end of the world
The search for you is my path to follow
* 寻寻觅觅: searching, 相守: accompany, 脚步: footsteps
The emptiness beside me is your grace.
* The dark, empty pillow side is your tenderness (温柔).
The awakening dawn is my sorrow.
* 清晨: dawn, 哀愁: sorrow
Perhaps, when the tired birds return at dusk tomorrow,
* 太阳西下: "the sun setting in the west"; dusk
You have already begun walking on the old road back.
In life, it is difficult to find another partner who truly knows you.
* 寻觅: searching (寻寻觅觅 means the same thing. In Chinese, we double words like this for more emphasis.)
After all, what is life without the blue sky and white clouds?
The thundering rainstorm outside my window.
* 轰隆隆: the sound of thunder
How can I ever forget the changes brought by your departure?
* 转变: changes
Behind my single silhouette is my loneliness.
* 孤单: alone, 心情: feelings/emotions
Forever without resentment are my eyes.
*无怨: no resentment
The vast horizons are yours to travel.
The search for you is my path to follow
The emptiness beside me is your grace.
* Literal: The dark, empty pillow side is your tenderness.
The awakening dawn is my sorrow.
Perhaps, when the tired birds return at dusk tomorrow,
You have already begun walking on the old road back.
In life, it is difficult to find another partner who truly knows you.
After all, what is life without the blue sky and the white clouds?
The thunderous storm outside my window.
How can I ever forget the changes brought by your departure?
Behind my single silhouette is my loneliness.
Forever without resentment are my eyes
Forever without resentment are my eyes.