mammals

marine mammals generally swim with the current.

海洋物一般顺洋流方向而游。

Most mammals are diphyodonts.

大部分类物有齿及永久 齿之别。

Most mammals live on land.

大多数物生活在陆地上。

mammals were first domesticated for their milk.

物最初被驯养是为了取奶。

Whales are mammals that live in the sea.

是生活在海洋中的物。

Sea mammals must emerge periodically to breathe.

海生物必须不断地浮现出海面呼吸

The boa feeds on birds and small mammals.

蟒主要吃鸟和小的物。

several small gregarious cetacean mammals

几种小型群居的类物

mammals have, by and large, bigger brains than reptiles.

总的说来，物的脑比爬行物大。

There are lots of marine mammals such as whales and seals in the sea.

海洋里有许多诸如鱼和海豹类的海生物。

Bats are the only mammals to have wings and to achieve sustained flight.

蝙蝠是唯一的有翅膀且能持续飞行的物。

the insulation of marine mammals in temperate seas pre-adapts them for polar seas.

把海洋类物隔离在温带海域中使其预适应极地海域。

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力的物的统称。

massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws.

结实的食肉或杂食性跖行物，皮毛长而粗糙，爪有力。

any of various fissiped mammals with nonretractile claws and typically long muzzles.

爪不能伸缩、长鼻子的多种裂足物。

any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes.

非洲和亚洲的有爪类物，有类似啮齿物的门牙和类似有蹄物的脚。

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的栖息地，而且在温带森林里，小型的物居住在稠密的森林下层。

any of various undomesticated mammals of the family Canidae that are thought to resemble domestic dogs as distinguished from jackals or wolves.

犬科物中各种非家养的物，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.

感染血吸虫的人或其它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.

齿象美洲齿象属（有时为齿象）的几种已灭绝的高大、长鼻的物，与大象外形相似，但臼齿结构不同