nǐ / Zhōngwén / shuō / de / hěn / hǎo / bǐ / cǐ / bǐ / cǐ / wǒ / hái / zài / xué / xí

你中文说得很好，彼此彼此，我还在学习。

Your Chinese is very good. You and me both—I am still learning.