曾经
英文解释:
  1. v.  have
  2. adv.  ever
  3. adv.  beforehand
  4. n.  once
  5. adv.  sometime
  6. adv.  whilom
  7. n.  at one time
  8. n.  see better days
  9. n.  on one occasion
  10. n.  have already
  11. v.  (refers to something that happened previously)
  12. adv.  already
法文解释:
  1. adv.  jadis, autrefois, une fois