along the way, i saw lived more than seventy years old grandfather sweeps driveway.
路途中,我又见到活了七十多个春秋扫马路的老爷爷。
yale's residential college system which is more than seventy years old is perhaps the most distinctive feature of the college.
耶鲁的住宿学院体制巳拥有70多年的历史,而且恐怕它也是耶鲁学院最具特色的地方。
in ancient china, it is the system that the official were retired at seventy years old from pre-qin dynasty.
在我国古代,朝廷官吏「七十而致仕」(即「退休」),自先秦以来即已形成一种制度。
i often go to see my grandma and grandpa during winter vacation. they are both seventy years old and live in the country happily.
寒假里我经常去看望我的爷爷奶奶,他们都是七十岁,在乡下生活得很开心。