Eventually, the head bobs up again – but then it goes right back into the water.

终于，他再次抬起头， 但它会立即返回并沉浸其中。

" That is no reason why I should let you either. Call Jane to help or I'll bob up again directly, " answered Rose, with a very bad assumption of authority.

“这也不是我应该让你的理由。打电话给简帮忙， 否则我会直接再跳起来， ” 罗斯回答说， 带着一种非常糟糕的权威。

The greatest of thinkers, from Aristotle downwards, have tackled this little problem, which has a knack of baffling every effort, of slipping away and escaping only to bob up again, a pert challenge flung at philosophic speculation.

从亚里士多德开始， 最伟大的思想家都解决了这个小问题，它有一个诀窍， 那就是费尽心机，溜走和逃脱， 然后又跳起来，这是对哲学思辨的重大挑战。