嗳腐吞酸 Traditional 噯腐吞酸 ǎi fǔ tūn suān 🔊 putrid belching with regurgitation of… + Keep this word Meanings ǎi fǔ tūn suān 噯腐吞酸 putrid belching with regurgitation of stomach acid (medical term) Its characters 嗳ǎito belch腐fǔdecay吞tūnto swallowHSK 6酸suānsourHSK 4