ill illness 有什么区别?

ill illness 有什么区别? ill,illness,disease,sick有什么差别 illness ill sick 的 区别 ill到illness的区别 ill和illness的区别 disease,illness,sickness,ill,sick的区别 ill,sick,sickness,illness的区别 disease和illness有什么区别啊? illness 与 disease有什么区别? illness 和 sickness有什么区别? sick,ill,illness,disease在用法上的区别 disease illness sickness infection分别有什么区别?