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Jyutping jat1 jam2 ji4 zeon6
Pinyin yì yǐn ér jìn

Definitions (Wiktionary)
  1. phrase, idiomatic
    to drink at a draught

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Jyutping jat1 jam2 ji4 zeon6
Pinyin yī yǐn ér jìn

Definitions (CC-CEDICT)
  1. to drain the cup in one gulp (idiom)
Definitions (粵典–words.hk)
  1. x
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    他把杯子举到嘴边,一饮而尽。
    他把杯子舉到嘴邊,一飲而盡。
    tā bǎ bēi zi jǔ dào zuǐ biān , yī yǐn ér jìn 。
    • He raised the glass to his lips and drained it at one gulp.
    • He raised the glass to his mouth and drained it all in one shot.