Few Americans, she says, are aware that the roofs of 35m homes may be insulated with material containing asbestos (which is linked to a cancer called mesothelioma).

她说，很少有美国人知道三千五百万所房子的房顶铺隔热材料还有石棉(石棉与间皮瘤有关联)。

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Few Americans, she says, are aware that the roofs of 35m homes may be insulated with material containing asbestos (which is linked to a cancer called mesothelioma).

她说，很少有美国人知道三千五百万所房子的房顶铺隔热材料还有石棉(石棉与间皮瘤有关联)。

youdao