Translation:Our yard is big.
Is it just me, or does the audio (at the normal pace) sound a bit strange? To me, it sounded like there was an 'a' at the end of 'двор', which briefly confused me.
I heard 'двора' too..
It's perfectly fine. I am a native Russian. It's a bit slower than we normally say (for the sake of learners) but not unnatural in any way.