translation.en: So we did several attempts to reach this area, by land and with a helicopter, but it was really difficult because -- you have to imagine that these mountains are covered by clouds most of the year, by fog.
translation.zh: 于是，我们数次尝试前往这一区域， 通过陆路和直升机， 这一过程非常艰难，要知道， 这些山脉终年被云雾覆盖。