Here's the answer:
“那我就放心了”
(nà wǒ jiù fàng-xīn le)
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 87.19% of the time!
(nà wǒ jiù fàng-xīn le)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 87.19% of the time!
