quieres ser mi amiga

quieres ser mi amiga. 應該譯成「你想成為我的女性朋友」

quieres 是 querer (希望) 的第二人稱形式
ser 是
mi 我的
amiga 女性朋友﹐ 男性朋友是amigo

因為西班牙語的動詞會依據人稱作變化﹐所以主語時常略去。例如這句就沒有了主詞 tu。

It suppose to mean:
Do you want to know my (girl) friend.

Quieres = do you want

ser = to know

amiga = to normal girlfriend (not necessary dating).

About dating:
girl friend = novia
boy friend = novio

novia and novio can also mean husband or fiance.

If you have other Spanish problems, you can go to:
www.wordreference.com

It is a online dictionary and it is really helpful.

你想做我的(女性)朋友