HELLO: what means "Nide zhongwen zhen bu cuo" (chinese), please? THX?

你的中文真不错！
Your Chinese is very good!
Nide means yours
zhongwen means Chinese
zhen bucuo means very good

Nide zhongwen zhen bu cuo
你的 中文 真 不 錯
(your) (Chinese) (really) (not) (bad)

So it means "your Chinese is not bad"

"Your Mandarin has very few mistakes"/"Your Mandarin is very good"

Ni3 de Zhong1wen2 zhen1 bu4 cuo4
You (de) Mandarin very not mistakes
你的中文真不错