忍俊不禁 (jan2 zeon3 bat1 kam1) — cannot help but laugh in Cantonese
janˊ²忍zeon˗₃俊batˉ¹不kamˉ¹禁Mandarin Pinyin: ren3 jun4 bu2 jun4
Meaning of 忍俊不禁
nouncannot help but laugh
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