Prime Minister Hatoyama agreed. (Speech) Mr.Hatoyama announced plans for a review of U.S.- Japan relations leading up to 50th anniversary of the strategic alliance in 2010.

VOA: standard.2009.11.13

fifty years? No, it was the 50th anniversary of Frank Lloyd Wright.

五十年？是了，是弗兰克•劳埃德•瑞特的五十周年纪念日。

艺术画廊，来吧 - SpeakingMax英语口语达人

He visit Russian for the 50th anniversary commemoration of the U2 incident.

VOA: standard.2010.05.07

"I think you will see the president emphasizing the importance of the alliance, perhaps pointing to new year, the 50th anniversary of the 1960 security treaty, as an opportunity to revitalize and strengthen the alliance,".

VOA: standard.2009.11.12