用铝箔覆盖鱼并烘烤。

Cover the fish with ___aluminum foil and bake.

回收铝是节约资源的有效方法。

Recycling ___aluminum is an effective way to conserve resources.

许多飞机部件由铝制成，因为它轻便且坚固。

Many aircraft parts are made from ___aluminum because it is lightweight and strong.