how do i get to linguaphone from zhengzhou erqi square?or the railway station?

Do you refer to the Linguaphone English Training Center? It is around 5km from Erqi Square. If taking a taxi, it costs aorund CNY15. By bus, take no. 9 and get off at Huayuan Road Fengchan Road. Walk north for 2-3min to the International Trade 360 Plaza to find the training center.

From the rail station, you can take bus no. 900. It is around 8km. By taxi, the fare is about CNY20.