i*m new to china, how can i buy railway tickets in suzhou?

Hi Naoru, welcome to China! You can download mobile App "Railway 12306". It's China’s official railway ticket booking platform and provides such services as railway ticket booking, online payment, ticket changing, train ticket cancellation, orders tracking, etc. Resident Identity Card, Foreign Permanent Resident ID Card, Residence Permit for Hong Kong, Macao, and Taiwan Residents and Passport can be used to book railway tickets via the app. For more details, please read this article: https://mp.weixin.qq.com/s?__biz=MzA3NTYzNjM4NQ==&mid=2247523479&idx=1&sn=b6e89f3b9c40309fc7e71c00f10001bf&chksm=9f6f5759a818de4f5dfa1f2d6321df0276941a210e0b3477f7fe0d0454fafe4497a27572467f&token=201848118&lang=zh_CN#rd