" Poly" again refers to a lot, and " uria" again refers to urine again.
Poly还是指多,而Uria还是指尿液。
英语百科
Uria
Uria is a genus of seabirds in the auk family known in Britain as guillemots, in most of North America as murres, and in Newfoundland and Labrador as turr. These are medium-sized birds with mainly brown or black plumage in the breeding season. They breed on the coasts of the northern Atlantic and Pacific Oceans.