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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Calque from Cantonese 電燈泡／电灯泡 (din6 dang1 paau1), as though the third person is a light bulb in the background.
light bulb, bulb, incandescent lamp, electric light, electric-light bulb
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Classic usage
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