The natives take risks with their lives,of course,just because they live in such a difficult and hostile environment,but the whole concept of going out to look for an adventure is totally alien to them.

• 这些土著人冒生命危险，是因为他们居住在如此艰苦恶劣的环境中。至于说有意寻求探险刺激对他们来说则是完全没有的事。