how can I live without you

没有你我怎么活下去
You are a pretty/cute girl ,and your dream will one day come ture.

我怎样能没有你而住

You are a beautiful girl, your dream can unquestionably be realized

how I can live without you?翻译是我的生活中怎么能够没有你？

你是个漂亮的女孩，你的梦想一定能实现的。翻译是：
You are a preety girl,and your dream will be come ture.

没有你我怎么过？
You are a so pretty.Your dreams are sure to come true.

我的生活不能失去你。
You are so beautiful. Your dreams will come true one day.
这两句话没甚么逻辑关系，所以要分成两句来说。

我怎能失去你？
You are a beauty. Your dream must be come true.