在一项研究中，科学家从500名丹麦菲英岛儿童的卧室采集了灰尘样本。
For the new study, the scientists gathered information about the dust in the bedrooms of 500 children who live on the Danish island of Fyn.
在一项研究中，科学家从500名丹麦菲英岛儿童的卧室采集了灰尘样本。
For the new study, the scientists gathered information about the dust in the bedrooms of 500 children who live on the Danish island of Fyn.
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