如果要直译，如楼上。
如果追求美感，这样意译一下吧：
A single day doesn't pass without my wish to see you again,although I am afraid to hear from you.
Seeing you again is what I wish and what I fear.
You're unforgettable even if you've forgotten me.
Before feelings of missing filled heart,I've forgotten what to say.
也不怎么美，其实有的歌词译过来也能达意。
Dreams are beautiful but painful when waking up.
He stopped talking about the islet of meeting again,having a lifelong dream.
还有我喜欢的歌《不如不见》陈奕迅：
I miss your face,but the only things lefted are my memories.
How to chat without understanding?
Like me,who don't used to smoke,how have you changed?
It seems that one hundred years have passed.
I realize suddenly,
even if we can again,with the skillful performance,it might be better to be separated forever.
就这样吧。咩咩哈！
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