marine mammals generally swim with the current.
洋乳动物一般顺洋流方向而游。
marine mammals generally swim with the current.
洋乳动物一般顺洋流方向而游。
Most mammals are diphyodonts.
大部分乳类动物有乳齿及永久 齿之别。
Most mammals live on land.
大多数乳动物生活在陆地上。
mammals were first domesticated for their milk.
乳动物最初被驯养是为了取奶。
Whales are mammals that live in the sea.
是生活在洋中乳动物。
Sea mammals must emerge periodically to breathe.
生乳动物必须不断地浮现出面呼吸
The boa feeds on birds and small mammals.
蟒主要吃鸟和小乳动物。
several small gregarious cetacean mammals
几种小型群居类乳动物
mammals have, by and large, bigger brains than reptiles.
总说来,乳动物脑比爬行动物大。
There are lots of marine mammals such as whales and seals in the sea.
洋里有许多诸如鱼和豹类生乳动物。
Bats are the only mammals to have wings and to achieve sustained flight.
蝙蝠是唯一有翅膀且能持续飞行乳动物。
the insulation of marine mammals in temperate seas pre-adapts them for polar seas.
把洋乳类动物隔离在温带域中使其预适应极地域。
order Chiroptera) of the only mammals to have evolved true flight.
九百多种,属翼手目。是唯一一类演化出真正飞翔能乳动物统称。
massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws.
结实食肉或杂食性跖行乳动物,皮毛长而粗糙,爪有。
any of various fissiped mammals with nonretractile claws and typically long muzzles.
爪不能伸缩、长鼻子多种裂足乳动物。
any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes.
非洲和亚洲有爪类乳动物,有类似啮齿动物门牙和类似有蹄动物脚。
Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.
森林对鸟类来说是重要栖息地,而且在温带森林里,小型乳动物居住在稠密森林下层。
any of various undomesticated mammals of the family Canidae that are thought to resemble domestic dogs as distinguished from jackals or wolves.
犬科动物中各种非家养乳动物,由于区别于豺和狼而被认为是象狗。
Schistosome infected people or other mammals from the discharge of faecal egg, if manure contaminated the water, eggs were brought into the water, hatched miracidium in the water.
感染血吸虫人或其它乳动物从粪便中排出虫卵,若粪便污染了水,虫卵被带进水中,在水里孵出毛蚴。
Any of several very large,extinct proboscidian mammals of the genus Mammut(sometimes Mastodon,resembling the elephant but having molar teeth of a different structure.
乳齿象美洲乳齿象属(有时为乳齿象)几种已灭绝高大、长鼻乳动物,与大象外形相似,但臼齿结构不同
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