Lesson8 Part1-4

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Across
  1. 4. causing harm, damage, or injury to someone or something
  2. 6. in a way that makes a profit(利益)　[ c- ]
  3. 9. to choose to take up an idea, method, or course of action
  4. 11. can be used
  5. 12. a soft red-brown metal which pass electricity and heat easily, and used for making wire and coins
  6. 16. having official permission [ a- ]
  7. 17. to be real or present
  8. 18. a new idea, method, or invention
  9. 19. to make something smaller in size, importance, or value; to reduce
Down
  1. 1. in a way that relates to chemistry or chemicals
  2. 2. to burst or to break up into pieces
  3. 3. to fill a battery with electricity
  4. 5. to change in a chemical way when mixed with another chemical substance
  5. 7. a way of doing something
  6. 8. a substance used in chemistry or produced by chemistry
  7. 10. a chance that something might happen or be true
  8. 12. to take in and store electricity
  9. 13. steady and not likely to change or fail
  10. 14. a heavy, soft, gray, poisonous metal
  11. 15. to show information on a screen [ d- ]