Here's the answer:
“그게 원래 다 그런 거예요”
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Korean with Memrise get this phrase correct 87.06% of the time!
Fun fact: the hundreds of thousands of people learning Korean with Memrise get this phrase correct 87.06% of the time!