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A worker is silhouetted in an access tunnel during the installation of railway equipment in Erstfeld, Switzerland.
一个工人的轮廓在瑞士斯特·费尔德市火车隧道入口安装铁轨设备。
youdao
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A worker is silhouetted in an access tunnel during the installation of railway equipment in Erstfeld, Switzerland.
一个工人的轮廓在瑞士斯特·费尔德市火车隧道入口安装铁轨设备。
youdao