2017 actually marks their seventieth wedding anniversary.

2017 是他们结婚 70 。

We have, this year, marked the seventieth anniversary of the foundation of the United Nations.

今是联合国成立70。

He was touching his seventieth year, and though he had a very well-tempered constitution, his hold upon life had lost its firmness.

他快七十岁了， 虽然体质很好， 但对生活的把握却失去了坚定。

Then he lit his seventieth cigarette of the day and sat down at the writing-table with the thick wad of his stake money and winnings beside him and entered some figures in a small note-book.

然后他点燃了当天的第 70 支香烟， 在写字台前坐下， 旁边放着厚厚一叠赌来的钱， 在一个小笔记本上输入了一些数字。

In the matter of years, therefore, his career apparently belongs to the ante-bellum days, yet the most remarkable fact about this remarkable man is that his real life work did not begin until he had passed his seventieth year.

因此，就岁而言，他的职业生涯显然属于战前时期，但这位杰出人物最引人目的事实是，他真正的人生工作直到他七十岁才开始。