I must have see you somewhere before.

我一定在哪里见过你。

Their life together has been wonderfully happy.

他们在一起的生活极为幸福。

I'm so happy with you in this starry night.

在这样浪漫的星夜和你在一起我无限幸福。

I am in the 7th grade.

我是七年级。

I've got a million things to do.

我有很多事情要做。

In my opinion, the house isn't worththe price they're asking.

在我看来，这房子不值他们出的价钱。