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p166 Vocabulary %22the unknown%22

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

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

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