通宵達旦 (tung1 siu1 daat6 daan3) — stay up the entire night in Cantonese
tungˉ¹通siuˉ¹宵daatˍ₆達daan˗₃旦简 通宵达旦
Mandarin Pinyin: tong1 xiao1 da2 dan4
Meaning of 通宵達旦
nounstay up the entire night
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