Check your birth certificate.

查看一下你的出生证。

I have her birth certificate with me.

我有她的出生证明书。

Here's Obama's birth certificate, for example.

比如，奥巴马的出生证明。

A certified copy of the birth certificate.

出生证复印件一份。

Even birth certificate reporting is catching up.

甚至出生证报告都能出。