Here's the answer:
“好多人!”
(hǎo duō rén!)
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 96.06% of the time!
(hǎo duō rén!)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 96.06% of the time!