Excuse me, what does this English joke mean?

The English translation of this passage can be directly translated by machine. The interesting thing about this passage is that all the places where you fill in the words have certain pronunciation similarities and the same phonetic symbols. The other is that a rose was finally found stuck in Ross's nose. This may be incredible, but the author wrote it for the rhyme of phonetic symbols and the interest of the story. After all, there is a certain gap between cultures, and what they find funny is not necessarily interesting to us. Besides, this passage rhymes, so it's not that funny.