But the traffic jams are still a problem, especially at rush hour.

但是交通堵塞仍是个棘手问题，尤其是上下班高峰期。

youdao

But the traffic jams are still a problem, especially at rush hour.

但是交通堵塞仍是个棘手问题，尤其是上下班高峰期。

youdao