The British government media watchdog OFCOM is currently investigating Press TV, which is based in London, over complaints of "breaching accuracy and impartiality guidelines."

VOA: standard.2009.11.16

Do you know any movies that are based in London?

你知道以伦敦为背景的电影吗？

在伦敦拍摄的电影 - SpeakingMax英语口语达人

According to the London-based International Maritime Bureau, there was a significant upsurge in piracy in 2008.

VOA: standard.2009.10.30