常見例句雙語例句The platypus and the echidna are egg-laying mammals.鴨嘴獸和針鼴是産卵哺乳動(dòng)物。They are the only two egg-laying mammals in the world.它們是世界上唯一的兩種産卵的哺乳動(dòng)物。blog.sina.com.cnChickens were included to represent egg-laying animals, such as extinct reptiles, that passed on much of their DNA to the platypus and other mammals in the course of evolution.雞被作爲(wèi)卵生動(dòng)物的代表，一些已經(jīng)滅絕的爬行動(dòng)物可能在進(jìn)化過程中將基因傳給了鴨嘴獸和其他哺乳類。原聲例句Echidnas are part of a group of egg-laying mammals called monotremes. 返回 egg-laying mammals