The most important motor traffic road in the whole country, and it's just this comfortable, I didn't even notice it.

全国最重要的机动车道，居然这么舒服，我都没有注意到。

Scientists, believe it, are finding soot in mothers placentas, meaning unborn babies are directly exposed to the black carbon produced by motor traffic and fuel burning.

说出来你们可能不信，科学家在孕妇的胎盘中发现了烟尘。这意味着婴儿尚未出生就直接暴露于机动车行驶和燃料燃烧产生的黑碳之下。

It's a five kilometre section ride from the city centre, where there is not a single crossing with motor traffic at the same level.

这是距市中心 5 公里的路段，在同一层没有一个机动车交叉路口。