在中文中，"感觉有你真好"可以翻译为"It feels great to have you."或"I feel so much better with you around." 这句话表达的是与某人在一起感觉很好，可能是因为这个人带来了安慰或支持，使得对方感觉轻松愉快。

例句：

"I was having a really tough day at work, but talking to you on the phone made me feel so much better. It feels great to have you in my pfe."（"我今天在工作中遇到了很大的困难，但是和你通电话让我感觉好多了。有你在我的生活中真好。"）
"I'm so glad you could come to my party. It really means a lot to me that you're here. It feels great to have you with me."（"我很高兴你能来参加我的聚会。你能来真的对我很重要。有你在我身边真好。"）

这句话的来源可能源自人类的情感需求，即在艰难困苦的时候需要有他人的陪伴和支持。