Ridesharing services don't usually translate well across borders. Even if you can use the same company, you may have to pay in a different currency -- how do you know what that trip will cost until you've paid for it? Lyft might have a way to set your mind at ease. It just unveiled a partnership with China's biggest ridesharing firm, Didi Kuaidi, that will make it easier for travelers in both China and the US to hail rides. If you're an American visiting China, you can request a Didi car through the Lyft app in dollars; accordingly, a Chinese visitor to the States can use Didi to get a Lyft vehicle while paying in yuan. This ideally gives you both access to a service with a lot of coverage (Uber's Chinese footprint is small compared to Didi's) and prices you can understand.