Are these the same or different completely?

keyword "translate english to chinese" search count 700, competitor 10.
keyword "english to chinese translation" search count 3100, competitor 72300.

did you see the huge different in competitors? but to SE, are these two keywords almost the same? so If I target "translate english to chinese", the competitors targeting "english to chinese translation" DO still compete with me,don't they?

 

if I target the ""english to chinese translation" Do I need remove the posion word "to" from my page title, alt ,anchor,etc....? actually using ""english tchinese translation" to target ""english to chinese translation""?

 

If I understand you...
They are different phrases and you should leave the "to".

 

Obviously, Google considers them to be different. I would recommend checking to see which phrase brings more searches.

 

if I take "translate english to chinese ", my site keyword or title should be "translate english chinese",isn't it?

 

Give good sounding title for people not for google. For google it not so much important...