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.