While waiting at a traffic light, they saw a black Mercedes coupe on one side and a homeless man begging for food on the other.

在红绿灯旁等候的时候，他们看见一辆黑色奔驰轿车在一边，一个无家可归的人在另一边乞讨食物。

youdao

Men in white shirts and black pants directed new customers with the efficiency of traffic cops, shepherding them to tables as soon as they became vacant.

男人穿着白衬衫和黑西裤，刚到的食客泊好车，被引领到刚收拾好的餐台前。

youdao

Run on the street if it's been plowed, provided that it's safe from traffic, and watch out for areas that could have black ice.

如果马路上的雪铲干净了，而且不会有交通危险，你可以在马路上跑步，不过要小心有冰的地方。

youdao

Amazon was the most visited retail site on both Thanksgiving and Black Friday with traffic on the days being 25 million and 29 million.

FORBES: Cyber Monday Sales To Set The Tone For Amazon This Holiday Season

Built initially to help deal with the floods that regularly threatened the city, it now co-ordinates 30 government agencies and provides mobile applications to keep citizens in touch with potential accidents, traffic black-spots and other city updates.

BBC: How will our future cities look?

Mobile devices, including tablet computers and smartphones, accounted for 14.3% of all online retail traffic on Black Friday, according to Coremetrics.

CNN: Apple, Amazon lead big tech Black Friday