cover nut

例句：

1. 1. This type of nut is rich in protein and fiber.
   这种坚果富含蛋白质和纤维。
2. 2. He loves to eat nuts as a snack.
   他喜欢作为零食吃坚果。
3. 3. The nut butter is a great alternative to traditional butter.
   牛油果黄油是传统黄油的绝佳替代品。