2.19版本（部分）

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Across
  1. 2. to cause someone or something to experience something unpleasant or painful
  2. 3. to explain or understand the meaning of something
  3. 5. willing and quick to do something; showing no hesitation or reluctance
  4. 7. the quality of being honest and having strong moral principles; moral uprightness
  5. 9. a substance such as oil or grease used to reduce friction between moving parts
  6. 11. closely acquainted; very familiar or emotionally close
  7. 12. officially placed into service or assigned to active duty
Down
  1. 1. serving as an introduction or preparation for something more important; an initial or exploratory stage
  2. 4. as a verb, to use someone or something unfairly for personal gain; as a noun, a bold or notable achievement
  3. 6. coming before something else in time, order, or position
  4. 8. not well known, not clearly understood, or uncertain
  5. 10. spread out over a wide area; not concentrated in one place