As vistas of suburban grocery stores gave way to exurban mansions and then hay farms during a ride to the University of Virginia early one summer morning, George Wu sat on a plush bus seat and faced two dozen students aboard the U-Va. Express, reports the Washington Post. Nearly all were Chinese, and hardly any had set foot in Virginia before their plane landed at Dulles International Airport a few hours earlier. Wu knew they were nervous. Three years ago, he was in their place—a teenager far from home, unsure of his English, headed to the school in Charlottesville…