a traffic h_____this morning

a traffic h_____this morning a traffic light traffic traffic traffic traffic traffic traffic traffic traffic traffic a lot of traffic是什么意思 there a lot of traffic?” a traffic accident ＆the traffic accident有什么区别? what heavy traffic还是what a heavy traffic a traffic jam的traffic是形容词吗?若是为何traffic字典无形容词意思 辨析：a traffic accident; a traffic case; a traffic mishap; a road accident;汽车撞行人的那种 heavy traffic前面可以加a吗