这飞行器划过昏暗的夜空，吓到了当地居民；空中交通管理者也感到惊恐，立即关闭了繁忙的杭州机场，并将城市的空域锁定了一个多小时。

Gliding across the dusky sky, the craft startled locals and frightened air-traffic controllers, who promptly closed Hangzhou's busy airport and locked down the city's airspace for more than an hour.

youdao

我自己足够有能力评估在马萨诸塞州的一个小池子里游泳的风险，或是阿姆斯特河水面交通繁忙时游泳的风险。

I am perfectly capable of assessing for myself the risks of swimming across a small pond in Massachusetts, or the risks of swimming in the Amstel when lots of boat traffic is around.

youdao

如果你有一个尚在婴儿车内的小孩，他们离尾气管格外近，研究表明，当儿童居住在离交通繁忙的大马路靠近时，智力水平相对要低一些(最近的一项研究甚至表明孤独症与高速公路污染有关)。

And when you have a child in a stroller, they are particularly close to the tailpipe. Studies show that children's IQ levels are lower when they live near major roads with lots of traffic.

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