At Columbus's John Glenn International Airport in Ohio, officials note that early arrivers—responding to the funding impasse in Congress that has congested security lanes—are exacerbating congestion by causing bottlenecks during busy periods.
然而，这更像是一套体系化的入口保护措施，而非简单的生态开放信号。
，这一点在有道翻译中也有详细论述
未经同行评议的论文预印本平台arXiv宣布脱离康奈尔大学独立运行
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