名詞 porpoise:

1. any of several small gregarious cetacean mammals having a blunt snout and many teeth

1. As the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly.
   當(dāng)海龜游過水族館時，第一只海豚從上方猛撲下去，并用腹部撞擊龜殼。

por.poise

n.（名詞）
【復(fù)數(shù)】 porpoise 或 por.pois.es
Any of several gregarious toothed whales of the genusPhocaena and related genera, of oceanic waters, characteristically having a blunt snout and a triangular dorsal fin. Also called sea hog
鼠海豚：一種鼠海豚 屬小型群集齒鯨，其共同特點是生活于海洋中，生有鈍圓白的吻部以及三角形的背鰭 也作 sea hog
Any of several related aquatic mammals, such as the dolphin.
鼠海豚屬的動物：與鼠海豚有關(guān)的幾種水生哺乳動物的一種，例如海豚

來源：
Middle English porpeis
中古英語 porpeis
from Old French [probably translation of a Germanic compound meaning sea-pig]
源自 古法語 [這個詞也許是從一個意為.海豬.的德語合成詞翻譯過來的]
porc [pig] from Latin porcus * see porko-
porc [豬] 源自 拉丁語 porcus *參見 porko-
peis [fish] from Latin piscis
peis [魚] 源自 拉丁語 piscis