canopy
/ˈkænəpɪ; `kænəpɪ/ n
1 hanging cover forming a shelter above a throne, bed, etc （宝座或床等上面的）华盖, 罩篷.
2 cover for the cockpit of an aircraft （飞行器上的）座舱罩.
3 (fig 比喻) any overhanging covering 任何悬於上空的覆盖物
the grey canopy of the sky 灰灰的天幕
a canopy of leaves, eg in a forest 树冠层（如森林中的）.