可有可无
      Explanation: Can have, you can not. That there is irrelevant.
      Usage: Joint type; as attribute; describe something insignificant
      Source: Qing Cao Xueqin's "Dream of Red Mansions" Article everything back so as cloud objects, dispensable. "
      Examples: She lived for five years, for the first time feel the person is not a ~. ★ Ru Zhijuan "do so"
  • Thesaurus:  indifferent