bulbs
柯林斯词典
1. N-COUNT A bulb is the glass part of an electric light or lamp, which gives out light when electricity passes through it. 电灯泡
The stairwell was lit by a single bulb. 楼梯间只有一盏灯照明。
2. N-COUNT A bulb is a root shaped like an onion that grows into a flower or plant. 球茎
...tulip bulbs. …郁金香球茎。
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