最后结果在佛罗里达州宣布，日期是第一次航天飞机飞行30周年以及苏联宇航员尤里·加加林成为绕地球轨道飞行第一人50周年纪念日。

The announcement in Florida came on the 30th anniversary of the first space shuttle flight and on the 50th anniversary of Soviet cosmonaut Yuri Gagarin becoming the first human to orbit the earth.

youdao

今天是我开新浪博客5周年纪念日，感谢网友们五年来对我的新浪博客的支持，我决定在这五周年之际结束我的新浪博客情怀。

Thanks for all your support for my blog for hte past 5 years, I started this sina blog exactly five years ago and today, I have decided that my sina blog era is over!

youdao

I got interested in that particular question because one of our former PHD students who is now at Texas A&M, asked me to give a lecture on that subject in honor of some anniversary of the universities.

我对这个问题也感兴趣,因为我们学校的一名博士毕业生,现在在德克萨斯农工大学，请我就这个话题演讲,当时是大学的周年纪念日。

普林斯顿公开课 - 人性课程节选

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