He put in Caspian's hands something which he could hardly see but which he knew by the feel to be a horn.

他把一件东西放在凯斯宾的手上。凯斯宾几乎看不清楚那是什么，但凭触觉他知道那是一只号。

We can only distinguish one tree from another by the feel of the bark as our hands touch it in passing.

我们只能通过手在经过时触摸树皮时的感觉来区分一棵树和另一棵树。