1. clean (adj)
sạch sẽ, trong sạch
free from any dirty marks, pollution, bacteria, etc
2. wild (adj)
uncontrolled, violent, or extreme
3. space (n)
không gian, khoảng trống
an empty area that is available to be used
4. polite (adj)
behaving in a way that is socially correct and shows understanding of and care for other people's feelings
5. reptile ( n)
a cold-blooded animal that lays eggs and has skin covered with scales
6. dog (n)
A domesticated carnivorous mammal that typically has a long snout, an acute sense of smell, non retractable claws, and a barking, howling, or whining voice.
7. insect (n)
A small arthropod animal that has six legs and generally one or two pairs of wings.
8. snake (n)
A long limbless reptile which has no eyelids, a short tail, and jaws that are capable of considerable extension.
9. camel (n)
A large, long-necked ungulate mammal of arid country, with long slender legs, broad cushioned feet, and either one or two humps on the back.
10. chimpanzee (n)
A great ape with large ears, mainly black coloration, and lighter skin on the face, native to the forests of western and central Africa.
11. cow (n)
A fully grown female animal of a domesticated breed of ox, kept to produce milk or beef.
12. dolphin (n)
A small gregarious toothed whale that typically has a beak like snout and a curved fin on the back.