这种气体中的某些成分，比如铅，不仅污染大气，而且对人类身体健康也确实产生害处。
Some of the contents of this gas, such as lead, not only pollute the atmosphere but cause actual harm to the health of people.
它与我们面临的其他似乎永远存在的健康恐慌相比如何，比如人们在合成运动场上对铅的恐慌？
How does it compare with the other, seemingly perpetual health scares we confront, like panic over lead in synthetic athletic fields?
卡罗经常使用钢做作品，但也采用多样化的其它材料，比如青铜、银、铅、石制品、木头和纸。
Caro often works in steel, but also in a diverse range of other materials, including bronze, silver, lead, stoneware, wood, and paper.
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