马丘·比丘位于乌鲁班巴河两千英尺之上，由银盘、神庙、宫殿及150多间的房子组成，这些都保存的十分完整。
Two thousand feet above the Urubamba river, these ruins consist of baths, temples, palaces and about 150 houses, all very well preserved.
“牵引”蛛丝作为支撑股，用来将圆网的一个个终点固定在外悬在河湖之上的树杈上，形成一种辐射状。
"Dragline" silk is used to create the supporting strands that anchor the endpoints of an orb web to tree branches overhanging rivers or lakes and forms the radial threads in the web.
星期二罗伯特·桑德斯和他的狗狗划船经过阿肯色州的霍利·格罗伟回到在密西西比河洪水之上的家——真是相当的幸运！
Robert Sanders rows past his Holly Grove, Arkansas, home atop Mississippi River floodwaters Tuesday with his dog-aptly named Lucky.
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