R3 Unit 7-9Versión en línea Vocabulary por Da Kyung 1 helicopter an aircraft kept in the air by blades 2 army a large group of soldiers who are trained to fight 3 pupil a student 4 show-and-tell when students bring things to show to the class 5 cave a natural hollow or hole in the ground 6 rope a strong cord made of twisted strands of wire 7 deep far down from the surface 8 fracture break a bone 9 camel a large animal that has a hump on its back and lives in deserts 10 imagine to picture a person or thing in the mind 11 escape to get free
