cloacal papilla的用法和樣例：
例句
- The type of the cloacal epithelium of duck was studied by using histological techniques.
摘要運用組織學(xué)技術(shù)對番鴨泄殖腔上皮的類(lèi)型進(jìn)行了研究。 - Intercourse happens when these two openings are brought together in what ornithologists refer to as a cloacal kiss.
性交的過(guò)程就是兩個(gè)生殖器開(kāi)口湊到一起，鳥(niǎo)類(lèi)學(xué)家稱(chēng)之為泄殖腔交配。
