简单
English Expression:
  1.   simplicity
  2. n.  briefness
  3. n.  shortness
  4. n.  simple
  5. n.  the fillet [single] crochet
  6. n.  sketchy
  7. n.  casual
  8. n.  oversimplified
  9. n.  commonplace
  10. adj.  ordinary
  11. n.  being easy, plain or straightforward
  12. n.  not complicated
  13.   simple proteins
  14.   Jian Dan