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计划（制订）者；规划者；设计者
Planners are people whose job is to make decisions about what is going to be done in the future. For example, town planners decide how land should be used and what new buildings should be built.
例句
...a panel that includes city planners, art experts and historians.
由城市规划者、艺术专家和历史学家组成的专门小组
...a national meeting of economic planners.
经济计划制订者的全国会议