本期内容：

Twitter won a bidding battle against a number of tech firms vying to broadcast American football games online. The National Football League, which runs the professional sport, wants to spread its influence beyond couch-based television viewing. Twitter will stream ten Thursday-night games, along with highlights and interviews.

词义解析:

Bid: 竞标
Vie：竞争
Couch：沙发
Stream：流媒体直播