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p166 Vocabulary %22the unknown%22

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

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

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