cool bag
noun [ C ] UK uk/ˈkuːl ˌbæɡ/ us/ˈkuːl ˌbæɡ/ (US cooler bag)
(旅行时冷藏食物和饮料的)冰袋,冷藏袋
a bag made of a thick insulating material that keeps food and drink cold when you are travelling
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