名词
中文翻译：往返旅客流量
同义词：
['round-trip passenger flow', 'round-trip passenger volume']
例句：
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1. The airline's round-trip passenger traffic has increased significantly in recent years.
这家航空公司的往返旅客流量近年来显著增加。
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2. The city is experiencing a surge in round-trip passenger traffic due to the opening of new airports.
由于新机场的开放，该城市正经历着往返旅客流量的激增。
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3. The increase in round-trip passenger traffic has had a positive impact on the economy.
往返旅客流量的增加对经济产生了积极影响。