Gēn wǒ shuōshuō ba.
跟我说说吧。
Talk to me about it.
Notes:
跟(gēn): with
我(wǒ): me, I
说(shuō): to talk, to speak
吧(ba): modal particle word which makes the sentence sound like a suggestion
Example:
A:发生什么事了?跟我说说吧?
Fāshēnɡ shénme shì le? Gēn wǒ shuōshuō bɑ.
What happened? Talk to me about it.
B:没事,谢谢。
Méishì, xièxiè.
Nothing. Thanks.