The repair crew discovered that a rusted guy wire had caused the old radio tower to tilt dangerously.

guy 在此指大型构筑物（如塔、电线杆）上使用的钢质拉索，用于从侧面牵拉以抵抗风力和自重，与帐篷拉绳同义但场景从户外轻量化转向工业基建。