There is still no universally agreed-on explanation for why there should be such a dramatic cessation of tree growth at the upper timberline.

关于为什么在较高树线处树木迅速停止生长的原因，仍然没有一个一致的解释。

Interestingly, there is no generally agreed-on viewpoint as to what O-Sensei, Founder of Aikido, was actually doing when he showed this Aikido to the public.

很有趣地，老道主在公开示范合气道时，大部份人并不了解了解他在做什麽。