by a fixed date

Mr Stephenson said: "This is not hyperbole." He confirmed that the BBC will film a "special with a big twist" in January, followed by a three-part series filmed in 2015, with no fixed date for broadcast.

斯蒂芬森说：“这不是夸张。”他证实BBC会在明年1月拍摄一部“具有重大转折的特别篇”，此后会在2015年开拍第四季的三集，播出时间还不确定。

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The next parliament might also have a fixed term of five years, ending the privilege enjoyed by British prime ministers of choosing the date ( within five years) to call a general election.

下一届议会的任期大概也是5年，首相将不再享有（在5年内）选择大选日期的特权。

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