Here's the answer:
“我没带现金”
(wǒ méi dài xiànjīn)
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 95.85% of the time!
(wǒ méi dài xiànjīn)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 95.85% of the time!