Then I saw that the nature of all of them was changed, and that they became white cows; And that the first, who was in the midst of them, spoke, when that word became a large beast, upon the head of which were great and black horns;(Enoch 89:46-47)
I notice that the version that you provided has a lot of emendations though and the numbering is off. Below is the same section of text from the PDF that you provided.
-- And I saw till all their generations were changed, and they all became white bullocks, and the first one of them [was the word, and that word] was a great animal, and had on its head large and black horns; and the Lord of the sheep rejoiced over them and over all the bullocks.(Enoch 90:38)
I don't like it when authors interject stuff the way the one in your PDF does. I don't think I'd recommend it for the first time reader -- let people try to figure out for themselves what the text is saying. Here is the version that I reference -- the 1893 Robert Henry Charles translation -