书籍 Total English - 高级 - 单元7 - 参考

a class of animals to which humans, cows, lions, etc. belong, have warm blood, fur or hair and typically produce milk to feed their young

the activity of exchanging goods or services

an animal that feeds on the flesh of other animals

(of an animal) fit to live with people and not afraid of them

to move stealthily or quietly towards prey or a target, typically in a deliberate and calculated manner

the place or area in which certain animals, birds, or plants naturally exist, lives, and grows

a particular type of animal or plant that has typically been domesticated by people in a certain way

(of some animals or plants) to spend the winter sleeping deeply

an area for birds and animals to live and to be protected from dangerous conditions and being hunted

a protected area of land or water that is set aside for the preservation and protection of natural habitats, wildlife, and plant species

(of an animal, plant, etc.) being at risk of extinction

a class of animals to which crocodiles, lizards, etc. belong, characterized by having cold blood and scaly skin

happening infrequently or uncommon in occurrence

originating in another country, particularly a tropical one

a framework made of metal bars or wires in which animals or birds can be kept

any animal that lives by hunting and eating other animals

a structure that a bird makes for laying eggs or keeping the hatchlings in

continuing to exist all the time, without significant changes

a once-thriving town or community that has been abandoned or largely deserted, often due to economic or environmental factors

extremely impressive and beautiful, often evoking awe or excitement

a beautiful scene in the countryside that can be seen in one particular view

(of a volcano) currently showing signs of volcanic activity or having the potential to become active soon

a mountain with an opening on its top, from which melted rock and ash can be pushed out into the air

providing an environment where life or growth is difficult or impossible

the latest or most advanced level of technology, design, or knowledge in a particular field

previously owned or used by someone else

ready for being used or acquired

made by hand using traditional or artisanal methods rather than by automated or mass-production processes

having never been used or worn before

the gradual damage or deterioration that occurs to an object or property as a result of normal use or aging

used to refer to the availability of a product or property for purchase, sale, or rental