Here's the answer:
“客厅在楼下，卧室在楼上”
(kètīng zài lóuxià, wòshì zài lóushàng)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
You could also say:
- kè tīng zài lóu xià, wò shì zài lóu shàng
- kètīng zài lóu xià, wòshì zài lóushàng
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 95.24% of the time!
