catwalk

名词 catwalk:

1. narrow platform
2. narrow pathway high in the air (as above a stage or between parts of a building or along a bridge)

cat.walk

n.（名词）
A narrow, often elevated walkway, as on the sides of a bridge or in the flies above a theater stage.
狭窄甬道：狭窄的、通常升空的过道，如桥的侧边或戏院舞台上布景控制处的过道