你跟我的一个梦长得真像
[nĭ gēn wŏ de yī gè mèng zhăng dé zhēn xiàng]
Which roughly translates to 'You really look like one of my dreams'. It indicates that this person reminds the user very much of his dream. Such resemblance can be either positive or negative based on the nature of the dreams mentioned. Dreams often carry strong subjective emotional hues so there is more room for imagination.