I put my mouth to the dog's ear, and said something known only to us two.

我把嘴巴放在狗的耳朵上，说着只有我们两个知道的事情。

To dog ear the page of book means to bend the top corner slightly like a dog's ear. And this upsets many book lovers.

" To dog ear the page of book" 意思是稍微地折弯书的上角就像狗的耳朵那样。这种折角行为常常让爱书的人很苦恼。

So you can pet your dog, you can scratch your dog’s ears.

所以你可以抚摸你的狗， 你可以挠狗的耳朵。

And he said that only once in a blue moon does a dog's ear grow back.

而且他说，狗的耳朵重新长出来 真的是千载难逢。

The monkey immediately leaped on his back, and, grasping the dog's ear, beat away at his head with such good will that his adversary speedily gave in.

猴子敏捷地跳到他的背后，一把抓住了大狗的耳朵，开始用力地击打它的头部，以至于它的对手很快败下阵来。

Yeah, but he did have to have a bunch of stitches and he said that only once in a blue moon does a dog's ear grow back so...still hoping.

可是他必须帮它缝好多针，而且他还说只有出现蓝月亮时，狗才会再长出耳朵来，所以还有一点点希望。