最近一个秋天的早晨，一大群人堵住了威尼斯主要旅游景点之一——里亚托桥——的台阶。
On a recent fall morning, a large crowd blocked the steps at one of Venice's main tourist sites, the Rialto Bridge.
移民也是另外一个原因：一群老老少少的英国民众跨过塞文河桥，与威尔士的年轻人们擦肩而过，走向相反的方向。
Migration matters too: hordes of English folk, greying and otherwise, have crossed the Severn Bridge, passing Welsh youngsters heading the other way.
本文研究了广西扶绥县柳桥地区二叠纪末期的浅水相小有孔虫动物群。
A shallow water smaller foraminifera fauna is studied from limestone intercalations of the upper Permian chert from Liuqiao area, Guangxi Zhuang Autonomous Region, China.
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