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p166 Vocabulary %22the unknown%22

Author: jeong jae won
Description:
Keywords: , , , , , , online teaching

Content:
Definitions:
0. 5
1. courageous
2. expedition
3. revolution
4. research
5. economically
6. risk
7. 3
8. efficiently
9. 2
10. vision
11. 1
12. the unknown
13. explorer
14. 4
15. reliable

Answers:
0. the chance something bad might happen
1. the study of a subject to learn new facts
2. an idea or dream of what could happen
3. 1
4. 5
5. brave
6. 4
7. 2
8. dependable
9. a complete change in how we do things
10. carefully, without wasting money
11. 3
12. using time, money, or effort effectively
13. a place no one has ever been
14. a carefully planned trip, especially to a dangerous place
15. someone who travels to places no one has ever visited
.