huì yuán guó 加入联合国等各种政府间或民间性的国际组织，成为会员的国家，称"会员国"。
会员国 Member States ; member country ; member nation ; the member states
创办会员国 founding member
国际联盟会员国列表 League of Nations members
非会员国 non-member state
创始会员国 original members ; founding member state ; original member-state
临时会员国 provisional signatory
准会员国协定 Association Agreement
国会议员 member of congress ; parliamentarian
任职人数不足的会员国 underrepresented member states
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