嚡嚡聲 (haai4 haai2 seng1) — sighing sound in Cantonesehaaiˎ₄嚡haaiˊ²嚡sengˉ¹聲简 嚡嚡声Mandarin Pinyin: hai4 hai4 sheng1Meaning of 嚡嚡聲nounsighing sound