Being caught in a heavy traffic jam is quite an unpleasant experience.

因交通拥挤而堵车是相当烦人的经历。

youdao

We were caught in a heavy traffic jam and arrived late for the meeting.

我们遇到了交通堵塞，开会来晚了。

youdao

Rose, here you are! But why did you take so long to get here? Is there a heavy traffic?

露丝，你终于来了。怎么这么长时间才到？是不是路上堵得厉害？

youdao

The council said a heavy volume of traffic used the roundabout each day and warned of disruption.

BBC: West Sussex council to repair ageing Hazelwick flyover

Amtrak has stumbled along for almost 40 years, and outside a few corridors that can sustain heavy traffic and can make a contribution to energy security, it only exists as a wispy network of long distance trains that serve no other purpose than to suck the taxpayer dry.

CENTERFORSECURITYPOLICY: Not a model railroad

The Web site for one of Indonesia's main newspapers, The Jakarta Globe, crashed for a while, partly as a result of the heavy traffic from people trying to find out about the quake, the paper said in a Twitter post.

CNN: At least 1,100 dead from Indonesia quakes, UN official says