Here's the answer:
“你干嘛呢?”
(nǐ gàn-má ne?)
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 91.13% of the time!
(nǐ gàn-má ne?)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 91.13% of the time!