通風管道 (tung1 fung1 gun2 dou6) — ventilation duct in Cantonese
tungˉ¹通fungˉ¹風gunˊ²管douˍ₆道简 通风管道
Mandarin Pinyin: tong1 feng1 guan3 dao4
Meaning of 通風管道
nounventilation duct
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