xb3 u2

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Across
  1. 3. 重力，严重性
  2. 4. to make someone feel annoyed or worried
  3. 5. the work of keeping something in good condition
  4. 8. to be made up of
  5. 10. the ability to control one's actions
  6. 16. extremely or surprisingly
  7. 18. 评估，评价
  8. 20. 条件，状况
Down
  1. 1. in addition; also
  2. 2. how often something happens
  3. 6. the state of not being in a place
  4. 7. the beginning of something
  5. 9. 面临，揭露，报道
  6. 11. lasting for all time
  7. 12. able to be seen
  8. 13. to take up a space or time
  9. 14. only; just
  10. 15. extremely important
  11. 17. 计算，预测
  12. 19. a reason for doing something