Stand up and hold your arms out horizontally at each side. Imagine that your arms are a bridge, and your head is a tower in the middle. In this position, your muscles are holding up your arms.

1月2日，长沙市开福区东风路高架桥下，市民在新建成的运动公园打球。该桥地处伍家岭街道和东风路街道毗邻区域，过去桥下空间仅用作停车和物资堆放场所。去年下半年，开福区城管执法局精心设计、精细施工，通过基础设施的修复和完善，使该桥桥下空间功能全面提升。目前 ...

Every year the last remaining Inca rope bridge still in use is cast down and a new one erected across the Apurimac river in the Cusco region of Peru. The Q'eswachaka bridge is woven by hand and ...

PANews 1月9日消息，据BIO ...

无线网桥（Wireless Bridge）是一种用于连接两个或多个网络设备的无线通信设备，常用于扩展网络覆盖范围，特别是在有线网络不便或无法布线的环境 ...