I have the opportunity to go Beijing for work purpose for a week, they have local version of every social media/online services imaginable, when I ask them is there any foreign website/app that they use a lot, they tried to think very hard and couldn’t come out with it. So they have no chance to interact with non-chinese speaking netizens. Unlike us, all our common websites/apps are all from international, which means we interact with a lot of international netizens, English is a must.