A U.S.envoy traveled to Pyongyang a few weeks later, and says North Korea would like to return to six nation talks about its nuclear weapons.

VOA: standard.2009.12.30

John Landy Six weeks later, John Landy, the Australian runner, runs the mile in 3 minutes 57.9 seconds.

六周后，澳大利亚跑手，一英里跑了三分57。9秒。

哈佛公开课 - 幸福课课程节选

John Landy Six weeks later, John Landy, the Australian runner, runs the mile in 3 minutes 57.9 seconds.

六周后，澳大利亚跑手，一英里跑了三分57。9秒。

哈佛公开课 - 幸福课课程节选