Chinese phrase
请放心 qǐng fàng xīn
Meaning
Please rest assured
When to use it
It asks a person not to worry. It is a polite, gentle reassurance often followed by information that explains why the concern is unnecessary.
Example dialogue
我还没收到快递，有点担心。 wǒ hái mò shōu dào kuài dì yóu diǎn dān xīn
I still haven't received the delivery, and I'm a little worried.
请放心，快递已经发出，明天就到。 qǐng fàng xīn kuài dì yǐ jīng fā chū míng tiān jiù dào
Please rest assured. The delivery has already been sent and will arrive tomorrow.