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.

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.

园丁将这些梨树修剪成单干形（cordon），以便于维护。

The gardener trained the pear trees into a ___cordon for easier maintenance.