Help translating 爱人跟人走
愛人跟人走
my love has gone with someone else

離開已經三年後  
It's already 3 years since you left me;
你煞有去無回頭
you gone away without turning back
真是乎人想抹到
[This] really is unexpected.
心肝親像磅心的菜頭
My heart is like a broken radish

想抹到想抹到
I couldn't imagine, I couldn't imagine
你會去跟人走
You would go away with someone else.
無彩我無彩我
You didn't care for me, you didn't care for me,
感情用這厚
Who had so deep feelings [for you].
外表漂泊無捨效
Looking handsome, natural and unrestrained was of no effect.
誤人青春上可惱
wasting people's youth is the most annoying.

啊無情的人
Ah… cruel person,
恨你是恨到老
hate you forever(until I'm old, or until death).
永遠來甲你
With you I will never…
田無溝水無流
across the line to each other (have a relationship)


word meanings and notes:

無彩:

無彩: means "in vain", "uselessly",  
the translation above is **meaning translation**,  
because he don't care about me, so whatever I do, is useless
the **direct translation** is:
無彩我無彩我
waste my, waste my
感情用這厚
so deep feelings [for you].


煞:

煞 also means "surprisingly"
你煞有去無回頭
you gone away surprisingly without turning back



  田無溝水無流：
  
  
    direct translation ( or literal translation )is:  
    
    
      If the field has no ditch, the water won't flow. 
    
    
    metaphor explaining:  
    
    
      "the field" is like " I ", "the water" is like " you (or he, the one who left her)".
      ditch, in OALD8, the english meaning is:
      a long channel dug at the side of a field or road, to hold or take away water
      so, "the ditch" is like "the way to contact me"
      "flow" is like "talk to me or touch me"
      so, the whole sentence is:
      if I don't allow you to contact me, you won't have any chance to talk to me or touch me.  
    
  


useful online dictionary:

http://twblg.dict.edu.tw/holodict_new/index.html

http://twblg.dict.edu.tw/holodict_new/result_detail.jsp?n_no=9721&amp;curpage=1&amp;sample=%E7%85%9E&amp;radiobutton=1&amp;querytarget=1&amp;limit=20&amp;pagenum=1&amp;rowcount=13