noun · An extension ladder used by firefighters for high-altitude rescues.

消防员升起云梯，从高楼窗户救出了受困人员。

noun · Steep stone stairs on a mountain path that lead up to high elevations.

山势陡峭，这一段石径云梯仿佛直插云霄。

noun · An ancient military ladder used for scaling the walls of a fortified city.

古代攻城时，将士们会架起云梯。