He looked like one of the many digital nomads appearing in Vietnam these days as he plopped his bag on a table near the back of a stylish cafe and ordered a coffee. 他那时看起来就像如今在越南出现的众多“数字游民”中的一员，把包扔在一家时尚咖啡馆后方附近的桌子上，点了一杯咖啡。 Then he ripped off his shirt and…