Heavy fog brought the traffic to a standstill.

　　大霧造成交通堵塞。

　　The heavy fog upset their timetable for the trip.

　　大霧打亂了他們的旅行日程。

　　As a result of the heavy fog, all flights have been delayed.

　　由于霧太大，所有航班都延誤了。

　　There was such a heavy fog that one couldn't see further than five metres.

　　霧太大，5米以外就看不見(jiàn)了。

　　In the journey, she faced heavy fog, heavy rain and heavy waves.

　　她在旅途中遇到了大霧、大雨和巨浪。