light bulb

IPA/ˈlaɪt bʌlb/
IPA/ˈlaɪt bʌlb/

light bulb — 名詞

1. a rounded glass or plastic object that screws into a lamp or ceiling socket and

1.名詞A2
釋義

電燈泡

通電後發光的玻璃裝置

a rounded glass or plastic object that screws into a lamp or ceiling socket and glows to give out light when connected to electricity.

例句

Mira replaced the broken light bulb in her bedside lamp with a new one.

Mira 把床頭燈燒壞的電燈泡換成新的。

The light bulb above the kitchen table needs to be changed soon.

廚房桌子上方的那顆電燈泡需要趕快更換。

常見搭配
  • change a light bulb
  • screw in a light bulb
  • light bulb goes out
  • energy-saving light bulb
  • LED light bulb
同義詞
  • bulb

    shorter, everyday equivalent

  • lamp

    the whole device that holds the bulb, not the bulb itself

用法筆記

Countable noun. Often used with a specifying phrase ("light bulb in...") or a modifier ("energy-saving light bulb", "LED light bulb").

常見錯誤

Could you turn on the light bulb?
Could you turn on the lamp / the light?
'light bulb' is the bulb itself, not the whole lamp.
The light bulb is too dark.
The light bulb is not bright enough.
'dark' describes a lack of light, not the bulb's capacity.

2. a moment when someone suddenly understands something or has a clever idea that t

2.名詞B2
釋義

靈光乍現

突然理解或想出好主意

a moment when someone suddenly understands something or has a clever idea that they did not have before — as if a mental light has been switched on.

例句

A light bulb went off in Yasmin's head when she finally understood the maths problem.

Yasmin 終於搞懂那道數學題時，腦中像是亮起一盞燈。

idiom: a light bulb goes off in someone's head

Brian had a light bulb moment during the meeting and solved the budget problem.

Brian 在會議中靈光乍現，解決了預算問題。

collocation: light bulb moment

常見搭配
  • light bulb goes off
  • light bulb moment
  • light bulb appears
  • light bulb above head
同義詞

文法句型

a light bulb goes off / appears (in / above someone's head)

a light bulb moment

用法筆記

Almost always occurs in fixed expressions such as "a light bulb goes off" or "a light bulb moment." The physical bulb is not actually involved — the image is of a light switching on inside the mind. Distinguish from sense 1 (the physical object).

常見錯誤

I had a light bulb moment, so I bought one at the store.
I had a light bulb moment in class when I understood the formula.
the figurative sense describes a sudden realization, not an actual bulb.

同根字

常見搭配

常用片語

  • change a light bulb
  • screw in a light bulb
  • light bulb goes out
  • light bulb goes off (figurative)
  • light bulb moment