Here's the answer:
“wir sind ein Herz und eine Seele”
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning German with Memrise get this phrase correct 94.02% of the time!
Fun fact: the hundreds of thousands of people learning German with Memrise get this phrase correct 94.02% of the time!
