There wasn't much traffic so we made good progress.

来往车辆不多，所以我们开得很快。

《牛津词典》

But this progress brought new problems: With all the cars, traffic was getting worse and worse, and pollution was ter-rible.

但这一进步又带来了新问题：这么多的小轿车使交通变得越来越糟，空气污染也很严重。

youdao

If progress is a three-hour, bumper-to-bumper traffic jam to the capital's airport, Indonesia too is going places.

如果说进步就代表着去首都机场要经历3个小时前车挨后车的交通堵塞，那么印尼也在进步。

youdao

"I'm pleased that we're making some progress towards mitigating the levels of traffic congestion in our region."

VOA: standard.2010.07.26

But the traffic increase has slowed progress in reducing emissions further, and people in many areas still suffer from nitrogen-related air pollution, including small particulates that get sucked deep into the lungs, and ground-level ozone - a strongly irritant gas formed by the action of sunlight on reactive nitrogen.

BBC: Nitrogen pollution 'costs EU up to ?280bn a year'

He said that the first quarter of 2008 would confirm the company's progress, thanks to a boost in road traffic through the tunnel and "outstanding" growth from the Eurostar passenger rail service.

FORBES: Eurotunnel Worth The Fare

With traffic and traffic lights there to confound smooth progress, putting a foot down when the road does finally open up is one of the few ways an urban driver can exert some control over a journey.

BBC: Traffic