You need enough nonperishable food items for three days for each person in your family.

您需要足够的不易腐烂的食品供您家中的每个人食用三天。

There are also aisles and aisles and aisles at grocery stores that have been emptied out by people buying water and nonperishable food items.

另外，食杂店的货架已经被购买饮用水和不易腐烂食品的人们抢购一空。