超市里的无品牌商品通常比名牌便宜不少。

The ___generic at the supermarket are usually much cheaper than name-brand products.

泛型可以让同一个函数处理不同类型的数据，而不需要为每种类型重写代码。

___Generics allow the same function to handle different data types without rewriting code for each one.