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Stone, metal, wood, paper, and cloth are materials. We use them every day.
石头 金属 木材 纸张和布匹都是材料 我们每天都在使用它们
Stone is a hard, heavy material.
石头是一种坚硬而且沉重的材料
Most stones sink to the bottom of water.
绝大多数石头都会沉到水里
We get stone from the ground and from mountains.
我们从地下和山里获取石头
Stone does not bend, but it can be cut into shapes.
石头不能弯曲 但可以被切割成不同的形状
We get metal from stone. Metals are strong and difficult to break.
我们从石头中提炼金属 金属很硬很难被折断
They are usually shiny. Metals are hard like stone,
它们通常都有光泽 金属跟石头一样硬
but we can bend them and make them into different shapes.
但我们可以折弯它们并做成不同的形状
