I do not know whether you realize it, but this condition is essential to us.
我不知道你是否了解,但是,这个条件对我们是必要的。
but they do underline the general principle that the relationship between elephant and mahout is the key to successful training.
但强调了一项基本原则,象和驯象员之间的关系是驯象成功与否的关键。