In fact, from a literary perspective, after people of former times had built up such a rich literary tradition around the cuckoo, perhaps the biggest challenge became how to write something even more brilliant about the bird.
若從文學的角度看，在前人醞釀出底蘊豐富、深厚的杜鵑文學後，該傷腦筋的，或許是如何寫出與杜鵑相關的更高明作品。