I know you don't understand but you will just have to accept my opinion this time.
我知道,你或许不能理解,但这次你必须接受我的意见。
But people who are cut off not only from foreign tourists, but even from their own countrymen can be hostile to travellers.
但是,那些不但与外国旅游者隔绝,而且与本国同胞隔绝的人们有可能对游客抱有敌意。