observer
联合国观察员
U.N. observer【社科】
暂无补充释义。
相关词条
observer
observer
qualified aircraft observer【航】
participant observer
hidden observer
nonparticipant observer
observer-representative
U.N. observer【社科】
暂无补充释义。
observer
observer
observer
qualified aircraft observer【航】
participant observer
hidden observer
nonparticipant observer
observer-representative