cordon

她的婚纱边缘缝了一条精致的丝带装饰。

Her wedding dress was trimmed with a delicate silk ___cordon.

保安在商场入口处拉起警戒线控制人流。

Security formed a ___cordon at the mall entrance to manage the crowd.

救援人员在火灾现场周围拉起警戒线，不让人群靠近。

Rescuers formed a ___cordon around the fire scene to keep the crowd away.