n.[C]

1. 动物
   Human beings are social animals.

   人是社会性的动物。

2. 兽；牲畜
   Horses can be used as pack animals.

   马可以用作驮畜。

3. 畜牲般的人；残暴的家伙
   The man was thought to be an animal because he behaved in a rough and unacceptable way.

   大家把这人当作畜牲，因为他行为粗鲁，令人难以接受。

a.[B]

1. 动物的；兽类的[Z]
2. 肉体的；肉欲的

n.

1. a living organism which is typically distinguished from a plant by feeding on organic matter, having specialized sense organs and nervous system, and being able to move about and to respond rapidly to stimuli.
   ▸a mammal, as opposed to a bird, reptile, fish, or insect.
2. a very cruel, violent, or uncivilized person.
3. a particular type of person or thing:
   a political animal.

adj.

1. relating to or characteristic of animals.
2. of the flesh rather than the spirit or intellect:
   animal lust.
3. Biology  denoting the pole or extremity of an embryo containing the more active cytoplasm. The opposite of vegetal.