Copper is a very ordinary building material that has become entwined in every facet of our lives, from the wires in our homes to our smartphones and, critically, electric cars, which use three times the amount of the metal as those in a conventional vehicle.
铜是一种非常普通的建筑材料，它已经渗透到我们生活的方方面面，从家里的电线到智能手机——更重要的是——还有电动汽车。
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