For one thing, being a problem gives you a certain identity,

因为这至少使我得到了某种承认，

One young calf especially enjoyed raising a turtle to the surface with his snout and then shoving him across the tank like an aquaplane.

一只小海豚特别喜欢用鼻子把海龟推到水面，然后像滑水板一样把海龟从水池的这一边推到那一边。

It is recounted of Thomas Carly1e that when he heard of the illness of his friend,

他听说朋友病了，

but the scientific dust has long since settled,

但是，自他逝世以来，那场科学上的纷争早已平息了下来，

of becoming more likely to die the older we get, was something self-evident,

人随着年龄的增长而接近死亡，这是不言而喻的，

Similarly, our own present primitive chemical rockets, though good enough to orbit men,

同样，我们目前使用的原始化学火箭，虽然可以把人送入轨道，