写出下列单词的汉语意思 1. remind 2. unique 3. challenge 4. incredible 5. clean up 6. participate in 7. take responsibility for 8. celebrate 9. event 10. biodiversity 11. sustainable 12. rally 13. pollution 14. block off 15. in honor of 16. exhibit 17. resource 18. preserve 19. theme 20. draw attention to textB 单词 练习.doc