He retired in 1970, on his fiftieth birthday.
他在1970年50岁生日时退休。
The fiftieth World Environment Day was on June 5th, 2021.
2021年6月5日是第五十个世界环境日。
This year marks the fiftieth anniversary of the seaway's opening.
今年是圣劳伦斯航道开通的五十周年。
And if you are considering a jump, whether it is your first or fiftieth, New Zealand is the place to do it.
当你在考虑进行一次跳伞时，无论这是你的第一次还是第50次，新西兰都是你应该去的地方。
Dawn’s produce 92 millinewtons of thrust, something like a fiftieth of the amount in a smallish firework rocket.
“黎明”号产生的推进力仅为0.092牛顿，是小型烟花火箭推进力的五十分之一。
This week marks the fiftieth anniversary of the Peace Corps.
本周是和平队成立五十周年。
Berlin in 1929 held a public celebration on Einstein's fiftieth birthday.
柏林在1929年爱因斯坦第五十岁生日时举办了一个公开庆祝会。
The last one was added in 1959 when Hawaii became the fiftieth state of the United States of America.
最后一颗星是在1959年夏威夷成为美国第五十个州时加上去的。
Dawn's produce 92 millinewtons of thrust, something like a fiftieth of the amount in a smallish firework rocket.
“黎明”号的离子发动机产生0.092牛顿的推力，就像一个较小烟火火箭推动力的五十分之一。
The fiftieth year shall be a jubilee for you; do not sow and do not reap what grows of itself or harvest the untended vines.
第五十年要作为你们的禧年。这年不可耕种，地中自长的，不可收割；没有修理的葡萄树，也不可摘取葡萄。
This year is the fiftieth birthday of Barbie. The doll first appeared at the toy fair in New York on March ninth, nineteen fifty-nine.
今年是芭比的五十岁生日，这个玩具第一次出现在纽约玩具展上，是在1959年三月九日。
On the eighteenth, Hillary, Chelsea, and I were in New York City for a big party celebrating my fiftieth birthday at Radio City Music Hall.
18日，我、希拉里、切尔西在纽约市的城市电台音乐厅参加盛大晚会，庆祝我的50岁生日。
According to my rough statistics, some commodities take up only one tenth, one twentieth or even one fiftieth of the space in the huge package.
据我粗略的统计，有的商品在大包装中仅占空间十分之一，二十分之一，甚至五十分之一。
In 1994, as we headed for the celebration of the fiftieth anniversary of D-day, several newspapers published a story on my father's war record, with a snapshot of him in uniform.
1994年，我们动身前往庆祝诺曼底登陆50周年，几家报纸刊登了我父亲在战时的服役记录，上面还有一张他穿军装的快照。
Since the silicon material is an expensive component of a conventional solar cell, a cell that requires just one-fiftieth of the amount of this semiconductor will be much cheaper to produce.
由于硅材料是传统太阳能电池中一种很昂贵的成分，所以一种只需要1/50这种半导体材料的太阳能电池投入生产将更加便宜。
"Those big movies around Fiftieth Street are cool," suggested Jordan. "I love New York on summer afternoons when every one's away."
“五十号街附近那些大电影院很凉快，”乔丹提议说，“我爱夏天下午的纽约，人都跑光了。”
"Those big movies around Fiftieth Street are cool," suggested Jordan. "I love New York on summer afternoons when every one's away."
“五十号街附近那些大电影院很凉快，”乔丹提议说，“我爱夏天下午的纽约，人都跑光了。”
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