Hěn ɡāoxìnɡ yòu jiàndào nǐ.

很高兴又见到你.

It's lovely to see you again.


Notes:

很(hěn): very

高兴(ɡāoxìnɡ): happy

又(yòu): again

见到(jiàndào): to see

你(nǐ): you

Example:

A：很高兴又见到你。

     Hěn ɡāoxìnɡ yòu jiàndào nǐ.

     It's lovely to see you again.

B：我也是.

     Wǒ yě shì.

     Me too.