- 問題詳情:Imaginegoingcampingforoveraweekwithseveralofyourclosefriends.Youwouldmakesureyouhaveplentyoffoodandthingstocookandeatwith.Thefoodwouldhavetobestoredproperlytopreventspoilage(變質).Afterfinishingyourmeal,orattheendofyourcampingtrip,youwouldthe...
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