travel to shang hai

it will be my beautiful end point for my current job--travel to shang hai;
why did I say so?
because when I joined into the company, I went to shanghai to do 1st business! at that time I have some frightened and not confident, I didn't know how to cope with this matter, after all I didn't go to so far and meet with new customer by myself;
but I got it and let me obtain more appreciation and good evaluation in the company, as this boss give me more support and chance in the future, I think it is the successful 1st step for the job, it let me work happily and freely later;
now I will leave the company and search for better development, before this boss let me go to shang hai again, at this time my mood have some complex and unreadable; because after all this is the last time; I didn't know why I have so inenarrable mood;
maybe when you want to leave anywhere, you will have this kind of mood, because it has bring you many rememberable thing, your friendsand good colleagues, so it is difficult that part with them!
but in order to better tomorrow, people must give up somethings! right?