Here's the answer:
“그녀는 어떤 사람에게도 말하지 말아야 해요”
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 87.5% of the time!
Fun fact: the hundreds of thousands of people learning Korean with Memrise get this phrase correct 87.5% of the time!
