Here's the answer:
“买买买！”
(mái mái mǎi!)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 100% of the time!
(mái mái mǎi!)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 100% of the time!
