稀金属元素

例句：

1. 1. Aluminum is a lightweight but strong metal used in many products.
   铝是一种轻质但坚固的金属，用于许多产品。
2. 2. The aluminum cans are easy to open and close.
   铝罐易于打开和关闭。
3. 3. Aluminum foil is often used as a substitute for wax paper during cooking.
   铝箔常被用作烹饪时的蜡纸替代品。