必要物品

例句：

1. 1. We need to buy some necessities before we leave the house.
   我们离开家之前需要买一些必需品。
2. 2.The store has a wide selection of necessities for all ages.
   这家商店有各种各样的必需品，适合所有年龄段的人。
3. 3. She packed her suitcase with everything she needed for her trip.
   她把行李箱里塞满了她旅行所需的一切。