observation mission

• 观察团

observation mission的用法和样例：

例句

1. The OAS General Assembly held in Washington in 1989 requested the General Secretary to accept the invitation of the member states to form electoral observation missions.
   一九八九年美洲国家组织大会在美国华盛顿召开的年会，建议秘书长应行接受会员国的邀请，组织选举观察团至会员国观选。