Across
- 4. a person with much knowledge of one science
- 5. 保护
- 6. showing interest in sth
- 8. living or growing in the nature
- 10. to let sb do sth;
- 11. give food to
Down
- 1. 政府
- 2. a careful study of a subject,
- 3. 情形
- 7. 象征 标志
- 9. something that can hurt or harm you