名词
中文翻译：上流社会
同义词：
['upper class', 'upper crust', 'elite例句：1. The upper reachesof the river are home to many rarespecies of fish.（河流的上游居住着许多稀有的鱼类。）2. The upper reaches of thecity are often overlooked by tourists.（城市的上流区域常常被游客忽视。）']
例句：
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1. The upper reachesof the river are home to many rarespecies of fish.
河流的上游居住着许多稀有的鱼类。
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2. The upper reaches of thecity are often overlooked by tourists.
城市的上流区域常常被游客忽视。
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3. The upper reachesof society are where power and privilege reside.
社会的上层是权力和特权的所在地。