I wish you were here的意思就是我多么希望你在这里啊，所以这句话可以算是想念对方或者情侣之间所用的句子。Wish跟hope的区别在于，wish是不可能发生了，hope是有可能发生的。比如我们可以说I wish the asteroid did not hit the Earth，但不能把wish替换成为hope。

I wish you were here.

我希望你在这里。

Darling, I wish you were here.

亲爱的，我多希望你在这里。

I wish you were here, dear.

你在就好了，亲爱的。

Oh, darling. I wish you were here.

嘿，想象你躺在我的臂弯里。

Cavalier! How I wish you were here.

我的骑士。真的希望你在这里。