保溫水瓶 (bou2 wan1 seoi2 ping4) — a thermos in Cantonesebouˊ²保wanˉ¹溫seoiˊ²水pingˎ₄瓶简 保温水瓶Mandarin Pinyin: bao3 wen1 shui3 ping2Meaning of 保溫水瓶nouna thermos