cool bag

noun
🔊/ˈkuːl bæɡ/
🔊/ˈkuːl bæɡ/
(British English)
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  1. a bag that keeps food or drinks cold and that can be used for a picnic 冰袋,冰盒(用于保存野餐食物或饮料)compare cool box, cooler, ice chest