The maintenance crew used a tall ladder to replace the lights in the lobby.

維修人員用一把高梯子更換大廳的燈。

Warehouse staff must inspect each ladder for damage before reaching the top shelves.

倉庫員工在拿取最上層貨架的物品前，必須檢查每把梯子是否有損壞。

Our hardware store is offering fifteen percent off all aluminum ladders this weekend.

本店這個週末所有鋁製梯子一律打八五折。