（二）在车辆、行人通行的地方施工，对沟井坎穴不设覆盖物、防围和警示标志的，或者故意损毁、移动覆盖物、防围和警示标志的；
Jon Butterworth is professor of physics at University College London, and a member of the ATLAS Collaboration at Cern
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圖像來源，GREG BAKER/AFP via Getty Images
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