I need to construct a multilingual website. Serve distribution is important to SEO. But I want to know more about how to launch and set those serve. Just like, I will use english, chinese, germany. Do I need to put a serve in US, CH and DE? How to make the language switch on every site? That means, when people click the switch button to see different language, should I change the site to a sub-domain or a sub-directory? Thanks very much!
