porpoise

名词 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.
   当海龟游过水族馆时，第一只海豚从上方猛扑下去，并用腹部撞击龟壳。

por.poise

n.（名词）
【复数】 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：一种鼠海豚 属小型群集齿鲸，其共同特点是生活于海洋中，生有钝圆白的吻部以及三角形的背鳍 也作 sea hog
Any of several related aquatic mammals, such as the dolphin.
鼠海豚属的动物：与鼠海豚有关的几种水生哺乳动物的一种，例如海豚

来源：
Middle English porpeis
中古英语 porpeis
from Old French [probably translation of a Germanic compound meaning sea-pig]
源自 古法语 [这个词也许是从一个意为.海猪.的德语合成词翻译过来的]
porc [pig] from Latin porcus * see porko-
porc [猪] 源自 拉丁语 porcus *参见 porko-
peis [fish] from Latin piscis
peis [鱼] 源自 拉丁语 piscis