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滾瓜爛熟

简滚瓜烂熟 · 繁滾瓜爛熟

Mandarin · pinyin gǔn guā làn shú

lit. ripe as a melon that rolls from its vine (idiom); fig. to know fluently
to know sth inside out
to know sth by heart

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Characters in this entry

滾: Look up this written character
瓜: guā · melon, gourd, cucumber; Kangxi radical 97
爛: Look up this written character
熟: shú · well-cooked; ripe; familiar with
滚: gǔn · turn
烂: làn · rotten, spoiled, decayed

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

3–1–4–2 · gun3 gua1 lan4 shu2

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Compare dictionary sources Wiktionary · 1 sense · 1 Cantonese reading

Rime Cantonese 粵拼

gwan2 gwaa1 laan6 suk6

Cantonese word readings for 滾瓜爛熟. This lexicon supplies readings, not definitions.

CanCLID contributors · CC BY 4.0 · source & license · Data pack

gwan2 gwaa1 laan6 suk6

Pleco · CC BY-SA 3.0 · Word reading; meanings not aligned.

Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

phrase

(to know something) by heart; (recite, etc.) fluently

Source page · dump 2026-09-02 · Contributors & history

Wiktionary contributors · CC BY-SA 4.0 · source & license · Data pack