light bulb
light bulb是固定搭配，指电灯泡。
He replaced the broken light bulb in the kitchen.
他更换了厨房里坏掉的电灯泡。
鳞茎
bulbs — plural of bulb
球状物；圆头物；球鼻艏；球茎；电灯泡；[医] 球
The rounded underground part of a plant such as a tulip, consisting of a short stem and fleshy scale leaves, from which the plant can regrow.
The bulb-shaped underground portion of a plant such as a tulip, consisting of a shortened stem and many fleshy scale leaves, from which the rest of the plant may be regrown.
Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.
A bulbous protuberance at the forefoot of certain vessels to reduce turbulence.
I need to replace the bulb in the kitchen ceiling light.
我需要更换厨房天花板上的灯泡。
用法提示：名词，指电灯泡。
The bulb flickered for a moment before it went out completely.
灯泡闪烁了一会儿，然后完全熄灭了。
用法提示：名词，指电灯泡。
Please turn off the lamp once the bulb has cooled down.
请等灯泡冷却后再关灯。
用法提示：名词，指电灯泡。
light bulb是固定搭配，指电灯泡。
He replaced the broken light bulb in the kitchen.
他更换了厨房里坏掉的电灯泡。
表示某物的球状或膨大部分。
The bulb of the thermometer contains mercury.
温度计的球状部分含有水银。
bulb作'鳞茎'解时，常与plant搭配。
She planted tulip bulbs in the garden last autumn.
她去年秋天在花园里种下了郁金香鳞茎。
形容词修饰bulb，描述灯泡或鳞茎的状态或类型。
A dim bulb flickered in the hallway.
一个昏暗的灯泡在走廊里闪烁。
lamp 可指灯具或灯泡，在指灯泡时可与 bulb 互换。
light 在口语中常指灯泡，但也可指光源或照明。
grammar · medium
易错句子She has a bulb nose.
正确表达She has a bulbous nose.
误用‘bulb’作为形容词。正确的形容词形式是‘bulbous’，表示球状的。
grammar · medium
易错句子There are two bulb in the socket.
正确表达There are two bulbs in the socket.
可数名词复数形式错误。'bulb'的复数形式为'bulbs'。
bulb 指灯泡（可替换的发光部件），lamp 指整个灯具（如台灯、落地灯）。
bulb 特指灯泡，light 泛指光源或照明（如电灯）。说 'turn on the light' 常用，而 'turn on the bulb' 不自然。
灯泡
The light bulb needs to be replaced.
这个灯泡需要更换。
郁金香球茎
She planted tulip bulbs in the garden.
她在花园里种了郁金香球茎。
灯泡插座
The bulb socket is broken.
灯泡插座坏了。
白炽灯泡
Incandescent bulbs are less efficient than LEDs.
白炽灯泡比LED灯泡效率低。
替换灯泡
I bought a replacement bulb for the lamp.
我给台灯买了一个替换灯泡。
灵光一现的时刻
She had a light bulb moment and solved the puzzle instantly.
她灵光一现，立刻解开了谜题。
恍然大悟
When he explained it, the light bulb went on in my head.
他解释后，我恍然大悟。
笨蛋；不聪明的人
He's a bit of a dim bulb when it comes to technology.
他在科技方面有点笨。
灯泡亮了（灵感来了）。
When he saw the clue, the light bulb went off in his head.
当他看到线索时，脑子里灯泡亮了（灵光一现）。
换一个灯泡需要多少个X？
How many psychologists does it take to change a light bulb? One, but the light bulb has to want to change.
换一个灯泡需要多少位心理学家？一位，但灯泡必须自己想要改变。
Dictionary facts from ECDICT, WIKTIONARY.