据我们所知，没有任何数据能清楚表明广大的巴西北部与东北部人口密度较低的内陆地区卡车司机感染艾滋病病毒的风险有多大。

To our knowledge, no data are available on the risk for HIV infection among truck drivers in the North or Northeast of Brazil, an area with a vast, low population density interior.

youdao

据我们所知，没有任何数据能清楚表明广大的巴西北部与东北部人口密度较低的内陆地区卡车司机感染艾滋病病毒的风险有多大。

To our knowledge, no data are available on the risk for HIV infection among truck drivers in the North or Northeast of Brazil, an area with a vast, low population density interior.

youdao