详细解释:n. 球茎, 电灯泡
【医】 球, 鳞茎, 球茎
英语解释：
名词 bulb:
a modified bud consisting of a thickened globular underground stem serving as a reproductive structureelectric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity同义词：light bulb, lightbulb, incandescent lamp, electric light, electric-light bulb