一天,伦敦城大雾弥漫。史密斯先生刚从爱丁堡来到伦敦参加一个非常重要的会议,但街上没有公共汽车和出租车,因为能见度太差,司机们不敢开车。现在是九点钟,史密斯先生的会议要到十点钟才开始,所以他想步行到办公室。他往四处看了看,发现街上根本没有行人。 One day, the city of London is filled with fog. Mr. Smith just came to London from Edinburgh to attend a very important meeting, but there was no bus or taxi in the street because the visibility was so poor that the drivers could not drive. It is now nine o’clock. Mr. Smith’s meeting will not begin until ten o’clock. So he wants to walk to the office. He looked around and found no pedestrians on the street.