It is true that during their explorations they often faced difficulties and dangers of the most perilous nature, equipped in a manner with would make a modern climber shudder at the thought,

确实，在探险中他们经常遇到惊心动魄的困难和危险，而他们装备之简陋足以使现代登山者一想起来就胆战心惊。

It caused devastation by burrowing and by devouring the herbage which might have maintained millions of sheep and cattle.

它们在地下打洞，吃掉本可以饲养数百万头牛羊的牧草，给澳洲大陆造成了毁灭性的破环。

if there is any effect of noise upon mental health it must be so small that present methods of psychiatric diagnosis cannot find it.

如果噪音对精神健康有影响的话，那也一定是微乎其微，以致现代的精神病诊断方法还发现不了。

After all, all living creatures live by feeding on something else, whether it be plant or animal, dead or alive, and it is only by chance that such a fate is avoided.

因为一切生物都是靠吃别的东西来活命的，不管这种东西是植物还是动物，死的还是活的，因此，生物偶尔才能避免被吃掉的命运。

they would not be so hurt,

那么他们就不会那样伤心，

Some hotels supply boiled water on request and this can be used for drinking, or for brushing teeth.

有的酒店根据要求可提供开水，这些开水可用于饮用和刷牙。