嘔心 (au2 sam1) — to strain one's mind, to exert one's utmost effort in Cantonese
auˊ²嘔samˉ¹心简 呕心
Mandarin Pinyin: ou3 xin1
Meaning of 嘔心
nounto strain one's mind, to exert one's utmost effort
noundisgusting, nauseating, sickness
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