razor wire

1. N-UNCOUNT Razor wire is strong wire with sharp blades sticking out of it. In wars or civil conflict it is sometimes used to prevent people from entering or leaving buildings or areas of land. 刀片刺網; 鐵絲網

...plans to use razor wire to seal off hostels for migrant workers. ...使用鐵絲網來封鎖移民工所住旅店的方案。