Cadmium is a metallic element.
镉是一种金属元素。
镍是一种金属元素。
Alloys contain more than one metallic element.
合金包含不止一种金属元素。
Alloys contain more than one metallic element.
合金则包含不止一种金属元素。
It is a metallic element that is found in the crust of Earth.
这是一种金属元素，存在于地球的地壳。
It is a metallic element that is found in the crust of Earth.
这是一种金属元素，存在于地球的地壳。
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