Here's the answer:
“女士们先生们……”
(nǚshìmen xiānshengmen...)
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 98.51% of the time!
(nǚshìmen xiānshengmen...)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 98.51% of the time!
