necessities

例句：

1. 1. We need to buy some necessities before we leave.
   在我们离开之前，我们需要购买一些必需品。
2. 2. The store has a wide selection of necessities for everyone.
   这家商店有各种各样的必需品供每个人选择。
3. 3.She decided to buy the necessities she needed for her trip.
   她决定购买她旅行所需的必需品。